On the morning of August 3, 1955, the pile-driving operator on a barge in the middle of Lake Pontchartrain looked north and saw nothing. He looked south and saw nothing. East and west, the same. In every direction the lake stretched flat and grey to the horizon, and the horizon was simply where the water met the sky without interruption.
The barge sat about twelve miles from either shore. The nearest land in any direction was the distance a person might cover in a fifteen-minute drive down a city street, but from where the man stood that distance was not felt, because there was no land to measure it against. The horizon where land should have appeared matched the horizon in every other direction, which was only water and nothing else. He stood on a pile-driving barge, a flat steel platform carrying a crane, a diesel hammer, and a stock of prestressed concrete piles, each roughly 65 feet long and 35 tons.
The barge was held in place by a tugboat against the afternoon winds coming off the open lake. The diesel hammer was running. The pile beneath it was being driven into a lake bottom twelve feet deep, through sediments extending another fifty feet below that, toward the bearing material that engineers who had surveyed the lake bottom the previous year had confirmed was there. When the pile reached that bearing material, the blow count would change.
The resistance of the sediments to the pile’s downward progress would increase noticeably, and the crew would recognize the change and stop driving. They would record the depth and the blow count. They would cut the pile to the required design elevation. The barge would move sixty feet toward the north shore.
The next pile would begin. There were 2,243 piles to drive in the first span alone. The north shore was twelve miles away. This is the story of how Louisiana built the longest bridge in the world across twenty-four miles of open water, over a body of water shallow in its water column and deep in its unstable sediments, so deep that foundations had to penetrate fifty feet of soft clay before finding solid ground to rest on.
It is the story of a project the state was told for three decades was too long to build, then too expensive to finance, then too geologically uncertain to complete safely, and then built in fourteen months. It is the story of the men who lived on the lake aboard converted barges for the duration of their shifts, driving concrete into the bottom of a body of water that offered no land in any direction and no shelter from the heat of a Louisiana summer or the fog of a Gulf Coast autumn. It is the story of 2,243 concrete columns, each driven to the depth the engineers specified, by men who navigated with instruments in open water because the shore was too far away to see. The bridge they built is still there.
It is twenty-four miles long. You can cross it today. The people who cross it daily do not think, halfway across, about the men who made that crossing possible. That is how infrastructure works.
The bridge works. The men became part of the past. To understand why Louisiana spent three decades arguing about whether to cross Lake Pontchartrain directly, you must understand what the lake is and what it cost to go around it. New Orleans sits on the south shore of Lake Pontchartrain, on land mostly below sea level, surrounded by water in a way that resembles no other major city.
The Mississippi River bounds it to the south and west, too wide and commercially vital to build cheap bridges across at most points. The Gulf of Mexico lies sixty miles south, reachable through the delta. The river has been building the region for thousands of years. Lake Pontchartrain bounds New Orleans to the north.
A body of water forty miles long and twenty-five miles wide, it separates the city from the parishes to the north exactly as the river separates it from the parishes to the south. Lake Pontchartrain is not technically a lake. It is a large brackish estuary connected to the Gulf of Mexico through a series of narrow passes and channels to the east: Lake Borgne, the Rigolets, and Chef Menteur Pass, through which the Gulf’s tidal influence moves back and forth with weather systems and seasonal pressure differences. The water in the lake is neither fresh nor salt but a mixture that changes with rainfall, wind direction, and the relative influence of fresh water pouring in from the northern parishes and salt water coming from the Gulf.
In a wet year, the lake is less salty. In a dry year, the Gulf’s influence is stronger and the lake is saltier. The water chemistry of Lake Pontchartrain is unstable from year to year. Anything that must remain in the lake permanently has to be designed to withstand the full range of conditions the lake produces, not just the average.
The average depth is twelve to fourteen feet. The maximum depth in the main channel is about fifteen feet. That shallowness is not an advantage for a structure that must remain in the lake permanently. Shallow water over a wide expanse generates wave heights out of proportion to the depth.
Lake Pontchartrain stretches the full width of the lake in the direction of the prevailing winds, which blow from the southeast in summer and the northwest in winter. Sustained winds of 25 miles per hour across twenty-four miles of open water twelve feet deep produce waves capable of shifting construction barges sideways, swamping decks not designed for open water, and complicating every marine operation on the lake’s surface. Beneath the twelve to fourteen feet of water lie sediments accumulated over 10,000 years of Mississippi basin drainage: fine grey clay and decomposed organic material, compressible under load, unable to support a structural foundation without significant treatment. The engineers who eventually designed the bridge understood from the start that the challenge of crossing Lake Pontchartrain was not the water.
The water was shallow. The challenge lay in what was beneath the water, and how deep one had to go to reach a layer that could bear weight. The north shore of Lake Pontchartrain in the early 1950s was a place geographically close to New Orleans and economically far from it. St.
Tammany Parish, directly across the lake from Metairie, was covered in longleaf pine forest and cut by streams draining the high ground toward the lake. The population of the north shore parishes was small. Commercial activity was limited to what the small towns of the rural southern parishes supported. The road to New Orleans looped around the eastern end of the lake through Slidell, adding an hour and a half of driving each way for any trip between the city and the north shore in good conditions, and longer in rain or traffic.
There were ferries. Ferry connections crossed the lake in about 45 minutes on a fixed schedule, with vehicle capacity so limited that arriving at the wrong time meant waiting for the next crossing. The ferries were adequate for the traffic volumes of an earlier era. They were inadequate for the traffic volumes Louisiana’s postwar automobile economy was producing, as everywhere else.
Car ownership in Louisiana was rising in the early 1950s at a rate the road and transit infrastructure of most American cities and suburbs could not absorb. The link between New Orleans and the north shore parishes was among the least absorbent in the metropolitan area. What the North Shore needed, and what the business community on both sides of the lake recognized as a necessity, was a fixed, direct crossing that could be traversed at highway speed without a schedule and without waiting. A crossing that would put the North Shore within commuting distance of New Orleans and open the pine and cypress lands of St.
Tammany Parish to the suburban expansion the postwar economy was driving on the edges of every major American city. The North Shore parishes had the land. They had low land costs. They had room for single-family housing subdivisions, the kind returning veterans and their families were building wherever land and proper roads were available.
What they did not have in the early 1950s was a proper road to make that land accessible to the people who wanted to live on it. The first serious proposal to cross Lake Pontchartrain with a fixed facility appeared in the 1920s. The state highway department studied it. The engineers filed a report on what engineers studying Lake Pontchartrain always filed reports on.
The lake was wide, its bottom soft, its water chemically aggressive toward iron and steel, and the cost of a fixed crossing would be high relative to the traffic volume the crossing would generate at a time when the North Shore had not yet developed the population base to support that traffic. The politicians read the report and declined to act. During the Depression years, the project did not advance because the financing a structure of that size required was not available in those years for that kind of project. The federal programs that created public works in the 1930s built roads and bridges, but the bridges they built were across rivers and harbors, structures with defined water crossings and limited distances.
A 24-mile timber bridge across an open lake was not the kind of project those programs were designed to fund, and Louisiana did not have the independent borrowing capacity to finance it from its own resources. In the late 1940s, the proposal returned with revised traffic projections reflecting postwar economic expansion and the population growth reshaping the New Orleans metropolitan area. The projections were more favorable than the prewar numbers. They were not favorable enough to satisfy the bond markets, which required a higher degree of confidence in traffic revenues than projections from a still-undeveloped region could provide.
The bond markets were not wrong. The North Shore in 1948 did not yet have the population or economic activity to generate the toll revenue the debt service on a 24-mile bridge would require. The pattern repeated itself. The engineers studied the crossing.
The engineers filed reports that the body of water was wide, the lake bottom clay, the cost prohibitive, and the traffic insufficient to retire the debt. The politicians read the report and declined to act. The ferries continued to operate, increasingly behind the growing demand for crossings. The road around the lake carried the traffic the ferries could not absorb, and the land on the north shore remained undeveloped for lack of a crossing to make it accessible.
What changed in 1954 was not the engineering of the lake, nor the geology of the sediments, nor a new technology for driving piles into soft sediments at great depths. What changed was the legal structure that made financing possible. The Louisiana legislature created the Greater New Orleans Expressway Commission and granted it the authority to issue revenue bonds backed by the future toll receipts of a bridge that did not yet exist. The commission could borrow money against the expected earnings of the bridge without requiring the state of Louisiana to pledge its general revenues as security for bondholders.
If the projections proved wrong, the bondholders bore the revenue risk. The state provided the legal framework and operating authority, while the commission managed construction, operation, and debt service from the tolls drivers paid to cross. It was the same financing structure that built the Mackinac Bridge in Michigan the same year, the Chesapeake Bay Bridge in Maryland the year before, and the roads and tunnels reshaping American infrastructure since the late 1930s. The mechanism worked because it separated the credit risk of the bonds from the credit risk of the state, meaning investors who would not lend to the state at acceptable interest rates would lend to a facility that was independent in its cash flows.
For the mechanism to work, engineers had to provide a credible engineering plan, and a construction company had to provide a realistic, reliable schedule. If both held credibility, bond buyers would come. The commission contracted with Palmer & Baker, an engineering firm based in Mobile, Alabama, to design the crossing. The engineers came to Lake Pontchartrain and did what engineers must do before designing anything.
They defined the problem. They sounded the bottom at intervals along the proposed alignment, took soil samples across the lake bed, and sent them to the laboratory to determine the bearing capacity of the materials at various depths below the lake floor. They measured the wave heights the lake generated under different wind conditions. They recorded the tidal influence coming through the lake’s connections to the Gulf.
They calculated corrosion rates of various construction materials under the brackish water chemistry. They counted the vessel traffic using the lake commercially and determined the clearance the movable spans required. They worked to the actual conditions of the lake, the only way to design something that could withstand it. Their conclusion was that a traditional long-span suspension bridge was not feasible for 24 miles.
The span length exceeded the structural economic feasibility of a suspension bridge design at the cost the bond market would finance. What was feasible was a prestressed concrete bridge, a bridge that did not cross the lake in one span but crossed it through a series of short spans supported by concrete piles driven into the lake bottom at 60-foot intervals. The technology for this type of structure already existed in wharf and pier construction. The scale was unprecedented.
No bridge of this length had ever been built over open water anywhere in the world. Prestressed concrete was the material the engineers specified for the piles and deck elements because it was the right material for the lake’s chemical environment. The service life of a conventional reinforced concrete pile in brackish water is limited by the rate at which chloride ions in the water penetrate the concrete cover and reach the steel reinforcement inside. Once chlorides reach the steel, corrosion begins.
The corroding steel expands inside the concrete, cracking the cover from within, exposing more steel to the water, accelerating the process, and eventually destroying the pile’s structural capacity from the inside out. A prestressed concrete pile addresses this by introducing internal compression into the element. Prestressing cables are tensioned before the concrete is poured around them. When the tension is released after the concrete hardens, the concrete is compressed under the force of the cables trying to shorten.
The resulting compression closes any microcracks in the concrete and reduces its permeability to the chloride ions that would otherwise penetrate. The steel sits deeper in the section with more concrete cover than conventional reinforcement allows. The result is a pile that withstands the brackish water chemistry better and longer than the alternatives available in 1954. The engineers chose prestressed concrete because it was the right answer.
The piles driven in 1955 and 1956 are still in the lake bottom. The design required 2,243 piles on the southbound span. Each was driven to a blow-count standard indicating it had reached bearing material of the specified capacity below the lake bed. The soil samples showed the bearing material was not at a uniform depth across the crossing alignment.
Near the shores, where the sediments were thinner, the piles required less penetration below the lake floor. In the main channel, where borings showed the soft material extending to its deepest point, the piles had to be driven about fifty feet below the lake bottom, sixty-five feet below the water surface, before the blow count said to stop. The men who built the Lake Pontchartrain Bridge came from the Gulf Coast marine construction workforce. They were not a single community with a unique cultural identity the way the Kanawake Mohawk ironworkers who built the high steel structures of the Mackinac Bridge were, rooted in a specific tradition of high steel work going back three generations.
The Gulf Coast marine construction workforce was more dispersed. Equipment operators who had spent years running crane barges and pile hammers on waterway and harbor projects across the region. Riggers who understood the mechanics of heavy lifting in unstable environments. Workers who came from the agricultural and timber economies of rural Louisiana, Mississippi, and Alabama because construction wages were better, and the work, though hard and dangerous, was more profitable.
Many of them were Black men. The Louisiana construction industry in 1955 was not formally integrated, and the division of labor on major construction projects in the Deep South reflected the racial hierarchy that governed employment throughout the region. Skilled equipment operator jobs and supervisory roles were held mostly by white men. The common labor that moved materials, operated equipment under supervision, and performed the physical tasks construction required without a recognized craft classification was performed mostly by Black men, at wages reflecting their position in the industry’s hierarchy of the 1950s South: less than the men above them, more than the agricultural and domestic labor markets many of them came from.
The payroll records of the Louisiana Bridge Company contain their names. Whether those payroll records are available today, and whether they have survived in a form researchers can use, has not been established in any widely published report. Housing was on the lake because the work was on the lake and because the lake was large. The Louisiana Bridge Company outfitted barges with sleeping quarters, food facilities, and utility systems sufficient to keep a crew operating for weeks at a time per work cycle.
The man driving piles twelve miles from the nearest shore did not return home at the end of his shift. He ate on the barge, slept on the barge, woke up on the barge, and went back to work. His time off the lake followed the schedule the company set, balancing the production demands of the bond schedule against the practical reality that men who spent too long on the water without rest became less effective at their jobs. Living on Lake Pontchartrain in the summer of 1955 meant living under Gulf Coast summer heat, above brackish water in a shallow basin with no shade.
The lake surface temperature in August exceeds 85 degrees Fahrenheit, while air temperature above that water runs in the early nineties. The humidity produced by air in contact with a body of water that warm at that latitude is humidity that does not break between sunrise and sunset, and does not drop significantly at night, because the lake retains the heat it absorbed all day and continues pushing moisture into the air above it through the night. The dew point on Lake Pontchartrain in August is in the early eighties. Relative humidity exceeds ninety percent in the morning.
Exposed skin under these conditions stays constantly wet. The men working on the pile-driving barges worked in that heat with the diesel hammer running when conditions allowed, while the concrete piles sat in direct sun on supply barges absorbing the heat of the Louisiana sun before being set for driving. The steel components of the driving equipment were too hot to touch with bare hands at midday. There was no artificial shade on a pile-driving barge while work was underway.
The water was in every direction, and there was no escape from the heat the water itself generated. The men wore what workers at Gulf Coast construction sites wore in August 1955, clothes not designed for comfort in those conditions and not expected to be. Fog was the other condition, and it was different in nature from the heat. Lake Pontchartrain fog is a morning phenomenon in the colder months, when the water temperature remains high from the heat stored through the summer while the air temperature above the lake begins to drop as the season advances.
Warm water evaporates into the cooler air above it, and the moisture condenses into fog that can cover the entire lake surface within an hour of a temperature inversion. A crew starting a morning shift in November could find itself unable to see from one end of its barge to the other. Navigating in those conditions in the middle of an open lake with no natural landmarks required instruments and caution, and awareness that the other barges, supply boats, and workboats moving between the shores and the construction sites were operating in the same fog with the same limitations. A barge that drifted off its position in the fog would drive the next pile in the wrong place.
A pile in the wrong position was a pile that had to be either removed, a slow and expensive process, or left in place as a defect in the structure. The crews held their positions using instruments, because the fog left them no other way to hold them. The winds blew in off the Gulf in the afternoons, from the southeast in summer and the northwest in winter, at sustained speeds that pushed the driving barge sideways against the tugboats holding it in position. When the wind rose to the point where holding the pile-driving position was no longer possible without burning excessive fuel and risking equipment damage beyond the value of the production, the work stopped, the barge was anchored, and the crew waited.
That waiting was recorded in the construction logs. It did not appear in the bond obligations of the Greater New Orleans Expressway Commission, which contained no weather clause. The pile-driving crews located each pile over its target position by reference to survey markers established along the alignment before driving began. Survey control extended from both shores, reinforced by temporary platforms at intervals across the open lake, through which instruments maintained the position of the driving barges within the specified tolerance.
When the pile was positioned and the hammer aligned, driving began. The diesel hammer struck the pile head at a rate of 40 to 50 blows per minute. Each blow drove the pile a measurable distance into the sediment. In the soft clay near the lake bottom surface, penetration was rapid.
As the tip approached the bearing material identified by the borings, the penetration rate slowed. When the blow count reached the standard the engineers had specified as indicating adequate bearing capacity, driving stopped. The crew recorded the depth and the blow count. The pile was cut to the required elevation.
The barge moved sixty feet. There were 2,243 piles. The casting yard for the piles and deck elements was established on the south shore near Metairie, where the prestressed concrete elements could be manufactured in a controlled environment and cured before delivery. Supply barges carried the finished piles from the casting yard to the construction work fronts, which by midsummer 1955 were at multiple locations along the alignment simultaneously.
Each pile was 65 feet long. Each pile had to be loaded onto a supply barge, transported to the work site on the lake, unloaded onto the driving crew’s barge, positioned over the target location, and driven. If the casting yard fell behind, the driving crews ran out of material and work stopped. If the supply barges fell behind, the result was the same.
If weather prevented the supply barges from working, the work front consumed its available stock and waited. The schedule governing the bond obligations controlled the casting yard, the supply fleet, the work crews, and even the weather, with equal authority and total indifference to which of these constraints was actually responding. Above the driven piles, precast concrete pile caps were placed to distribute the deck load onto the piles below. Precast concrete girders were set on the caps by a floating crane to span the 60 feet between adjacent pile rows.
The roadway deck was poured over the girder assembly in segments. Two bascule bridges, one near each shore, were incorporated into the bridge alignment to allow commercial vessel traffic to pass through the structure. The bascule bridges were mechanical systems operating in a brackish water environment. Their operating machinery required maintenance throughout the life of the structure, understood at the time of design and confirmed in the decades since.
The deaths that occurred during the construction of the Lake Pontchartrain Bridge are not fully documented in any widely available public record. Documentation of construction deaths in the mid-1950s was subject to state labor law requirements less comprehensive than those established in later decades. The marine environment of the bridge added layers of complexity that a land-based construction project would not have faced. A man fell from a pile-driving barge twelve miles from the nearest shore into warm, salty water twelve feet deep.
The water was warm enough that hypothermia was not an immediate danger as it would have been in Lake Superior or the Straits of Mackinac. But twelve feet of warm water remains, ultimately, twelve feet of water. Twelve feet of water over soft clay in the middle of a lake, with the nearest shore twelve miles away, is enough to drown a man who cannot be reached quickly enough. Safety boats were there.
Response time depended on what the lake allowed, the speed of the boats, and the distance. Whether the response time was fast enough depended on the specific circumstances of each incident, and those specific circumstances are not in circulation. What the records show is that the work was completed and the structure finished to specification. The records of the human cost of the men who did the work are another matter, and the available records do not answer it.
The southbound bridge was substantially complete by late summer 1956. On August 30, 1956, fourteen months after pile driving began from the middle of the lake, Louisiana Governor Earl Long led the official opening motorcade north from Metairie to Mandeville. The motorcade covered just over 23 miles of prestressed concrete bridge in about 24 minutes. Speeches were made at both ends.
Photographs showed the governor, commission officials, and senior engineers at the south toll plaza. New Orleans newspapers ran the opening on their front pages. National wire services picked it up. Guinness World Records confirmed what the engineers already knew.
The Lake Pontchartrain Bridge stretched 23. 83 miles over open water. The longest bridge over water in the world at the time of its opening. Built in fourteen months by a marine construction workforce that had now moved on to its next contract.
The men who lived on the housing barges and drove piles from the middle of the lake were not in Metairie on August 30, 1956. The Gulf Coast marine construction workforce did not stay at a work site after the contract was complete. The casting yard on the south shore was dismantled. The housing barges were towed away.
The supply fleet was reassigned to the next job. What remained was the bridge and the permanent maintenance crew whose job was to keep it in service. The workers who built it moved on to their next contract, wherever the next marine project on the Gulf Coast or inland waterways was beginning. The commission officials who appeared in the opening photographs are remembered in the administrative history of the Greater New Orleans Expressway Commission.
The engineers whose names appear in the design records received the professional recognition the design merited in the profession’s technical literature. The governor who led the opening motorcade is remembered in Louisiana’s political history. The men who drove 2,243 piles into the lake bottom exist in the payroll records. The toll at opening was 65 cents northbound.
Southbound was free. The asymmetrical arrangement reflected the engineering decision to place the full toll plaza on the south shore, where the Metairie interchange could support the infrastructure without requiring major road construction at the less developed north end. Sixty-five cents in 1956 represented a significant portion of a day’s wages for a Louisiana worker. The drivers who paid it were making an explicit decision that a 24-minute crossing was worth more than an hour and a half of driving around the lake plus the fuel that journey consumed.
Enough drivers made that decision that traffic volumes in the first years of operation met the projections the commission had presented to bond buyers. The debt was retired. The bonds were paid off on the schedule the commission had projected. When the bonds were retired, the commission was not dissolved.
It continued operating the bridge and using toll revenues to fund the maintenance a 24-mile structure in a brackish water environment requires without end. The bridge paid for its construction from the tolls of the people who used it. The men who built it were paid from the construction budget. Whether that pay was adequate for the risks and conditions is a question.
The accounts offer no answer, because the people who wrote them were the same people who set the wage rates. The northbound bridge, the second parallel span, was built in the mid-to-late 1960s when traffic volumes on the original bridge exceeded the capacity of one lane in each direction. The second bridge opened on May 10, 1969. It is 23.
87 miles long, four one-hundredths of a mile longer than the southbound bridge, because the geometry of the north approach required a slight deviation from the original alignment at the Mandeville end. With both bridges in service, traffic ran north on one and south on the other. The two structures converge closely enough along most of the crossing that a driver on one bridge can see vehicles on the other. Hurricane Katrina made landfall near New Orleans on August 29, 2005.
The storm surge Katrina pushed into Lake Pontchartrain through the Gulf connections to the east raised the lake’s surface several feet above its normal level. The surge moved under and along the entire bridge structure, and in the sections where the force of the surge’s height and the period of the waves generated significant uplift forces on the precast concrete deck panels, the panels were lifted off the girder edges and displaced from their positions. Sections of the roadway were damaged. The bridge was closed and required repairs before it could return to service.
The piles held. The prestressed concrete driven into the lake bottom by the pile-driving crews in 1955 did not move under the force of a storm that exceeded the design assumptions of a structure built a half century earlier. The storm’s characteristics were understood by the engineering profession. The deck panels resting on girder edges without the strong mechanical connection required by later standards were vulnerable to the uplift the surge produced.
The piles driven to the depth the 1954 engineers had determined was sufficient to reach a bearing layer of adequate capacity held. They held because the engineers determined the correct depth, and the pile-driving crews drove them to that depth in the heat, humidity, and afternoon Gulf winds, from a barge in open water where no land was visible in any direction. The depth was correct. The bearing material was there, as the test borings indicated.
The piles remain driven into it. The Lake Pontchartrain Bridge remains in service today. The toll for a passenger vehicle is $4. 50.
The crossing takes about 24 minutes at the posted speed limit of 65 miles per hour. In fog conditions, the speed limit is reduced, and the bridge authority has the authority to close the road entirely when visibility drops below the level required for safe operation. The same authority applies during storms approaching from the Gulf that threaten the lake basin between June and November. The bridge is operated by a permanent crew whose job is to keep it open and to know when it should be closed.
About twelve miles from the south shore, the land disappears. The south shore has dropped behind you, hidden below the curvature of the earth. The north shore has not yet risen above the horizon ahead. In every direction you look, there is only water.
That is the condition the pile-driving crews worked in daily in 1955 for months at a time. They did not guide their movement by sight of the shore because it was not visible, but by the survey markers the engineers had placed along the alignment and by the instruments on their barges. The shore was not the reference point. The survey marker sixty feet ahead of the current pile was the reference point.
They drove the pile, cut it to elevation, and moved to the next marker. If you stop on the bridge, which the authority does not allow though fog sometimes achieves it, and look through the railing at the water below, you are looking at twelve feet of brackish water above soft sediments extending fifty feet below the lake bottom. One hundred fifteen feet below where you stand, the tip of the nearest pile rests in the bearing material the soil samples identified in 1954, which the work crews reached in 1955 by driving until the blow count told them to stop. The bearing material has not moved in 68 years.
The pile has not moved. The bridge above it has been in service since the summer of 1956. The salinity of the lake around that pile changes with rainfall. The temperature changes with the seasons.
The water chemistry has acted on the concrete surface for nearly seven decades. Inspection crews descending through the water column on their scheduled cycles examine the concrete, measure the depth of any spalling, record the extent of any cracking or corrosion, and file reports of what they find to the maintenance staff who decide what to repair and when. The piles that required repair have been repaired. The bridge continues to operate.
The men who drove those piles exist in the payroll records of the Louisiana Bridge Company, in whatever form those records have survived the intervening decades. Their names are not on the memorial plaques at the south toll plaza that bear the names of the commissioners, the governor, and the engineers. Their names do not appear in the Guinness World Records entry confirming the bridge was the longest over water in the world. They appear in no ceremony connected to this structure.
The bridge is 24 miles long. It was built in fourteen months. The men who built it drove 2,243 concrete piles into the bottom of a brackish lake from a barge in open water where no land was visible in any direction: in the heat the lake generated in August, in the fog it generated in November, in the afternoon winds that pushed the barge sideways against the tugboats holding it in place. They drove each pile to the depth the engineers specified because the blow count told them they had not reached it yet.
When the blow count told them they had, they stopped, cut the pile to elevation, moved sixty feet, and drove the next one. The bridge is still there. The currents move through the lake from the Gulf connections to the east. The water temperature is 85 degrees in August and 50 degrees in February.
The fog comes in November. The piles remain.
