Calcasieu River Bridge

Last updated
I-10 Calcasieu River Bridge
Calcasieu River Bridge.JPG
Coordinates 30°14′14″N93°14′45″W / 30.2371°N 93.2458°W / 30.2371; -93.2458
CarriesI-10.svg I-10 and US 90.svg US 90
Crosses Calcasieu River
LocaleBetween Lake Charles, Louisiana and Westlake, Louisiana
Other name(s)I-10 bridge
Maintained by Louisiana Department of Transportation and Development
ID number 071004509127691
Characteristics
DesignThrough truss
Total length6,605.1 feet (2,013.2 m)
Width52.4 feet (16.0 m)
Longest span420.8 feet (128.3 m)
History
DesignerN.E. Lant
Opened1952
Statistics
TollFree both ways

The Calcasieu River Bridge, officially named the Louisiana Memorial World War II Bridge in June 1951 [1] is a through truss located on Interstate 10 between Lake Charles, Louisiana and Westlake, Louisiana. It was the only major bridge in Lake Charles, until the construction of the Lake Charles Loop with the I-210 Calcasieu River High Bridge began in 1962, with an average annual daily traffic (2009) of 51,800. The bridge has a vertical clearance of 135 feet (41 m). It was built under the administration of Gov. Earl K. Long and opened in 1952. It has decorative iron work with crossed guns integrated into the railings. The I-10 Bridge was originally built as the U.S. Hwy 90 bridge and later was grandfathered into Interstate 10.

Contents

The bridge has been rated structurally deficient by the Department of Transportation but was declared safe by the Louisiana Department of Transportation and Development (DOTD). There are plans to replace the bridge and improve the Westlake exit. [2]

History

Construction began in 1948 , [3] as part of U.S. Route 90 in Louisiana, and was completed in 1952. The bridge was built before the Interstate Highway System, and included pedestrian walkways that are forbidden on interstate highways, so the bridge is also rated as functionally obsolete. [4] Before the bridge was built, U.S. 90 traffic crossed the Calcasieu River over a draw bridge located by the Port of Lake Charles on Shell Beach Drive, which runs around the south side of the lake. The remnants of the old bridge can still be seen at the end of Shell Beach Drive by the Port.

Condition

The I-10 bridge has been listed by the National Bridge Inventory (NBI) as Structurally Deficient with a rating of 3 and a Sufficiency Rating of 9.9 out of 100. [5] Louisiana has 13,361 bridges with 1,722 (12.89%) listed as SD. [6] It was reported in March 2017 [7] that the sufficiency rating has dropped to 6.6 out of 100 [8]

The Federal Highway Administration (FHWA) and the Louisiana Department of Transportation and Development (LA DOTD) initiated a proposed project to replace the bridge in 1999. A feasibility study for the project was completed in 2002 with a projected cost of $450 million. [9]

Rating

As an indication of the bridge rating, a zero means that a bridge is closed. The rating of 1 is not used. The rating for the Calcasieu River Bridge has dropped significantly from 1992 to 2010. The 1992 report listed the deck condition as poor (4 out of 9), the superstructure condition as fair, with a 5 out of 9, an evaluation of structurally deficient, and a sufficiency rating of 40.9. In 2010, the deck condition was 4 out of 9 (the same), the superstructure condition was rated as serious (3 out of 9), the substructure condition was rated as serious (3 out of 9), and a sufficiency rating of 9.9 was assigned. These ratings evidence is a drastic drop in all but one area. The majority of heavy traffic SD bridges have a sufficiency rating of 50 or better. [10] The I-35W Mississippi River bridge had a sufficiency rating of 50 in 2005, was listed again as "structurally deficient" and in possible need of replacement, and had ongoing repairs to include overlay, lighting, and guardrails, before falling in August 2007. A contributing factor has been attributed to the extra weight caused by the construction.

Because of the severe substandard rating, the speed limit has been dropped to 50 mph and heavy trucks have been limited to the right lane on the bridge. This actually causes truck traffic to have to contend with merging ramp traffic from both ways, but particularly the east-bound ramp that merges at the foot of the bridge, creating a bottleneck. With the extreme height of the bridge, trucks speeds drop considerably to as low as 20 mph, creating a steady bumper to bumper congested traffic flow across the entire bridge at times, adding a substantial amount of weight on the bridge.

Traffic congestion

There are several causes of traffic congestion on the bridge including; a bottle neck caused from three lanes of traffic dropping to two in the busy corridor, an estimated traffic of 55,000 vehicles a day, sharp curves on the east side of the bridge in Lake Charles with reduced speed limits, a narrow bridge. The bridge is listed as currently being 6,617 feet (1 1/4 mile) length with a finished grade of 152.10" elevation. The east grade is 3.8% (listed in 1982 as 3.78% both ways) and the west grade is 3.8% and 5% 600' from the crest. There are no shoulders, no turn-around in case of accidents, and an exposed elevated walk-way on either side that also contributes to the bridge being obsolete. [11]

Repairs

In June 2011, the Louisiana DOTD began a $5.7 million repair project (State Proj. No.: H.006783) [12] on the bridge. Safety and structural repairs included replacing 48 girder pins, and the work was finished by December 22, 2012. Hangers were used for worker safety and precautions were taken to comply with environmental regulations. The existing girder pins were 4-in. (10.2 cm) and were replaced using 4.5-in. (11.4 cm) pins. To facilitate the larger pins, special custom-built drills were used. New 0.875-in. (2.2 cm) A325 structural bolts were used in the pin plate connections. Patrick Bernier, project manager for Topcor Services, LLC, general contractor for the project stated, "The bridge is safe, but it is too narrow according to modern highway standards [ . . . ] And it is too steep on its approaches.”. [13]

Designer N.E. Lant used 5,286 pairs of crossed decorative cast iron pistols placed on the bridge railing, reportedly in homage to pirate history and legends of Jean LaFitte, being the name he preferred, and 50 to 60 pairs have been damaged or determined to be missing. As part of the project, these will be replaced, along with damaged parts of the guard rails. [14] [15] The original castings were done by John Lester Boone Foundry Works of Lawtell, Louisiana. Missing/stolen pistols were recast by an Alabama foundry in the late 1980s and again in the 2000s during major overhauls of the bridge. [16] A state official in Scott, Louisiana stated in 1992 to a Boone descendant that so many people would walk up the thin sidewalks of the bridge at night to chip out and take home the crossed pistols as mantel pieces, that the ornaments had to be replaced to prevent the handrails from collapsing. [17]

Replacement of the bridge

In 2022, the Calcasieu River Bridge turned 70 years old. With over 600,000 bridges, the average bridge age in the United States is 42 years old, with one in nine rated as deficient. Louisiana has a total of 13,050 bridges, and 1,827 (14%) are considered deficient. 1,963 bridges (15%) are considered functionally obsolete. [18] [19]

It had been decided the bridge needed replacing since before 2002. There are several areas of concern including the age of the bridge, the low bridge ratings, steep grades, traffic congestion, amount of traffic that has been estimated at around 55,000 vehicles a day, low vertical traffic clearance, and contamination. These contributing factors rank the bridge as "a dangerous bridge" and 7th in the nation in need of replacing. [20] In 2023, a plan was vetoed on the replacement bridge due to tolls being proposed. This made the project on hold [21] until 2024 when a plan was approved that would include tolls especially higher tolls for trucks. [22]

Bridge concepts

Four different concepts are being considered for a new bridge.

Four alternates, that use two of the four bridge concepts, differ depending on if one-way or two-way service roads are chosen. Alternate 1 shows a preference for bridge concept A. Alternate 2 shows a preference for bridge concept C with continuous service roads across the bridge. All the bridge profiles use models with a 95' finished grade elevation, 57.10' lower than the current bridge, and a vertical clearance of 73' that is 62' lower than the current bridge. All bridge models show a 3% grade on the west side. The east side would be 3% for bridge profile 1, with 2.25% for profile 2, and 1.65% for profile 3. [23]

Conversion to Pedestrian Bridge

There is a local movement to preserve the existing bridge by converting it to pedestrian use after the replacement bridge is constructed. The group, Save Our Bridge, cites the Bridge's iconic status on the city skyline, cultural relevance in local art, and architectural heritage all as reasons for preservation. Adaptive Reuse of the bridge will also provide a key pedestrian access from the cities of Lake Charles and Westlake while drawing tourists to the area, promoting economic growth and health and wellness for locals.

While the bridge is no longer suitable for interstate traffic, it is possible to convert it to pedestrian use without significant economic investment. The Save Our Bridge effort is promoting the funding of an engineering study to determine the feasibility of preservation and pedestrian use as well as providing a conceptual design.

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References

  1. ↑ World War II Memorial Bridge-Retrieved 10-2-2015
  2. ↑ "I10 Calcasieu River Bridge". bridgehunter.com.
  3. ↑ Historic Context for Louisiana Bridges Archived 2020-12-24 at the Wayback Machine - (Section 2, page 34, December 2013) Retrieved 2020-03-23
  4. ↑ KPLCTV.com Archived 2014-09-03 at the Wayback Machine - Posted Mar 12, 2010; Retrieved 2013-04-16
  5. ↑ Nationalbridges.com/query- Retrieved 2013-04-16
  6. ↑ Reportcard- Retrieved 2013-04-16
  7. ↑ 92.9 The lake: The I-10 Bridge: It’s Worse Than You Think- Retrieved 2017-07-11
  8. ↑ Nationalbridges.com- Posted 2017-03-30: Retrieved 2017-07-11
  9. ↑ Bridge and Approaches Over Calcasieu River [ permanent dead link ] - Retrieved 2013-04-16
  10. ↑ Uglybridges.com;National Bridge Inventory data - Retrieved 2013-04-16
  11. ↑ 2002 Report p.31- Retrieved 10-1-2015
  12. ↑ DOTD bridge info - Retrieved 2013-04-16
  13. ↑ Bridge makeover- Retrieved 2013-04-16
  14. ↑ crossed pistol and guardrail replacement project- Retrieved 2013-04-16
  15. ↑ Lake Charles American Press Archived 2014-05-04 at the Wayback Machine - Last Modified: January 18, 2013; Retrieved 2013-04-16
  16. ↑ Damaged pistol ornaments replaced Archived 2015-10-03 at the Wayback Machine -Retrieved 10-2-2015
  17. ↑ Bridge work-Retrieved 10-2-2015
  18. ↑ Bridge report
  19. ↑ Louisiana statistics- Retrieved 10-1-2015
  20. ↑ Dangerous bridges- Retrieved 10-1-2015
  21. ↑ Schultz, David (2023-11-09). "Louisiana's Most Notorious Bridge Fails to Get Support in Legislature". KPEL 96.5. Retrieved 2023-12-10.
  22. ↑ Ashley (2024-02-01). "Plan approved for Louisiana I-10 bridge includes a hefty toll for truckers". CDLLife. Retrieved 2024-02-05.
  23. ↑ I-10 Calcasieu River Bridge and Approaches report p. 30- Retrieved 10-2-2015

30°14′14″N93°14′45″W / 30.2371°N 93.2458°W / 30.2371; -93.2458

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