US Bridges

Standard Mill RD over Coulee

Good

Acadia Parish, Louisiana · 0.47 Mi. E. of LA 35 · Structure no. 030130129921561

Built
1993
32 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
3,600
2020 count
Owner
County
County Highway Agency

About this bridge

Standard Mill RD over Coulee is a concrete slab carrying Standard Mill RD over Coulee in Acadia Parish, Louisiana. It was built in 1993, so it is 32 years old, younger 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 3,600 vehicles a day, projected to reach 3,960 by 2040. The structure is 76 ft (23.2 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesStandard Mill RD
CrossesCoulee
Location0.47 Mi. E. of LA 35
RouteCounty Highway 0
Coordinates30.21516, -92.26118
Functional classRural Local

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.9 US tons
Inventory rating21.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2020)
Projected traffic3,960 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Standard Mill RD over Coulee built?

It was built in 1993, making it 32 years old in 2025.

What condition is Standard Mill 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 July 2024.

How much traffic does Standard Mill RD over Coulee carry?

About 3,600 vehicles per day (2020 count).

How long is Standard Mill RD over Coulee?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Standard Mill RD over Coulee?

It is owned by the County Highway Agency.