US Bridges

Elm Grove RD over Stumpy Bayou

Good

West Baton Rouge Parish, Louisiana · 2 Mi. NE Erwinville La. · Structure no. 616130327912261

Built
1984
41 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete
Length
76 ft
4 main spans
Daily traffic
150
2020 count
Owner
County
County Highway Agency

About this bridge

Elm Grove RD over Stumpy Bayou is a concrete slab carrying Elm Grove RD over Stumpy Bayou in West Baton Rouge Parish, Louisiana. It was built in 1984, so it is 41 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 150 vehicles a day, projected to reach 165 by 2040. The structure is 76 ft (23.2 m) long and 26 ft wide.

CarriesElm Grove RD
CrossesStumpy Bayou
Location2 Mi. NE Erwinville La.
RouteCounty Highway 0
Coordinates30.54317, -91.37521
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length76 ft (23.2 m)
Longest span19 ft (5.8 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2020)
Projected traffic165 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Elm Grove RD over Stumpy Bayou built?

It was built in 1984, making it 41 years old in 2025.

What condition is Elm Grove RD over Stumpy Bayou 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 November 2024.

How much traffic does Elm Grove RD over Stumpy Bayou carry?

About 150 vehicles per day (2020 count).

How long is Elm Grove RD over Stumpy Bayou?

The structure is 76 ft (23.2 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns Elm Grove RD over Stumpy Bayou?

It is owned by the County Highway Agency.