US Bridges

US0090/SERVICE RD over Coulee

Good

St. Mary Parish, Louisiana · 0.9 MI West of LA 182 · Structure no. 035104240522903

Built
1975
50 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
162
2021 count
Owner
State
State Highway Agency

About this bridge

US0090/SERVICE RD over Coulee is a concrete slab carrying US0090/SERVICE RD over Coulee in St. Mary Parish, Louisiana. It was built in 1975, so it is 50 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 162 vehicles a day, roughly 12% of them trucks, projected to reach 178 by 2041. The structure is 140 ft (42.7 m) long and 30 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesUS0090/SERVICE RD
CrossesCoulee
Location0.9 MI West of LA 182
RouteU.S. Route 90
CountySt. Mary Parish
StateLouisiana
Coordinates29.69643, -91.36952
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 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 width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic162 (2021)
Projected traffic178 by 2041
Trucks12%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$663,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US0090/SERVICE RD over Coulee built?

It was built in 1975, making it 50 years old in 2025.

What condition is US0090/SERVICE RD over Coulee in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does US0090/SERVICE RD over Coulee carry?

About 162 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is US0090/SERVICE RD over Coulee?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns US0090/SERVICE RD over Coulee?

It is owned by the State Highway Agency.