US Bridges

LA0173 over Soda Lake Canal

Fair

Caddo Parish, Louisiana · 1.94 M E of JCT of LA 1 · Structure no. 040900940201941

Built
2000
25 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
713
2021 count
Owner
State
State Highway Agency

About this bridge

LA0173 over Soda Lake Canal is a concrete slab carrying LA0173 over Soda Lake Canal in Caddo Parish, Louisiana. It was built in 2000, so it is 25 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 713 vehicles a day, roughly 19% of them trucks, projected to reach 784 by 2041. The structure is 140 ft (42.7 m) long and 40 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesLA0173
CrossesSoda Lake Canal
Location1.94 M E of JCT of LA 1
RouteState Highway 173
CountyCaddo Parish
StateLouisiana
Coordinates32.65032, -93.8764
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82 US tons
Inventory rating49.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic713 (2021)
Projected traffic784 by 2041
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA0173 over Soda Lake Canal built?

It was built in 2000, making it 25 years old in 2025.

What condition is LA0173 over Soda Lake Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

How much traffic does LA0173 over Soda Lake Canal carry?

About 713 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is LA0173 over Soda Lake Canal?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 40 ft wide.

Who owns LA0173 over Soda Lake Canal?

It is owned by the State Highway Agency.