US Bridges

W. St. Mary Blvd. over Coulee

GoodPosted for load

Lafayette Parish, Louisiana · 0.40 MI W of US 167 · Structure no. 032830131920161

Built
1968
57 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
2,400
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

W. St. Mary Blvd. over Coulee is a concrete culvert carrying W. St. Mary Blvd. over Coulee in Lafayette Parish, Louisiana. It was built in 1968, so it is 57 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. Its operating status is: posted for load restriction.

It carries about 2,400 vehicles a day, projected to reach 2,640 by 2040. The structure is 26 ft (7.9 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesW. St. Mary Blvd.
CrossesCoulee
Location0.40 MI W of US 167
RouteCounty Highway 0
Coordinates30.21844, -92.02691
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width55 ft (16.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2020)
Projected traffic2,640 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was W. St. Mary Blvd. over Coulee built?

It was built in 1968, making it 57 years old in 2025.

What condition is W. St. Mary Blvd. 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 January 2024.

How much traffic does W. St. Mary Blvd. over Coulee carry?

About 2,400 vehicles per day (2020 count).

How long is W. St. Mary Blvd. over Coulee?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 55 ft wide.

Who owns W. St. Mary Blvd. over Coulee?

It is owned by the City or Municipal Highway Agency.