US Bridges

Riverside RD over Coulee

GoodPosted for load

Acadia Parish, Louisiana · 0.87 Mi. S of JCT LA 1123 · Structure no. 030100000030529

Built
2018
7 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
68 ft
4 main spans
Daily traffic
192
2020 count
Owner
County
County Highway Agency

About this bridge

Riverside RD over Coulee is a wood or timber stringer/multi-beam or girder carrying Riverside RD over Coulee in Acadia Parish, Louisiana. It was built in 2018, so it is 7 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. Its operating status is: posted for load restriction.

It carries about 192 vehicles a day, projected to reach 211 by 2040. The structure is 68 ft (20.7 m) long and 23 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRiverside RD
CrossesCoulee
Location0.87 Mi. S of JCT LA 1123
RouteCounty Highway 0
Coordinates30.32187, -92.60368
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating17 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span19 ft (5.8 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic192 (2020)
Projected traffic211 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 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 Riverside RD over Coulee built?

It was built in 2018, making it 7 years old in 2025.

What condition is Riverside 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 Riverside RD over Coulee carry?

About 192 vehicles per day (2020 count).

How long is Riverside RD over Coulee?

The structure is 68 ft (20.7 m) long with a longest span of 19 ft (5.8 m) and a deck 23 ft wide.

Who owns Riverside RD over Coulee?

It is owned by the County Highway Agency.