US Bridges

ST Romain RD over Tiger Bayou

GoodPosted for load

West Baton Rouge Parish, Louisiana · 4.4 MI NE Erwinville LA · Structure no. 616130336912041

Built
1984
41 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
250
2020 count
Owner
County
County Highway Agency

About this bridge

ST Romain RD over Tiger Bayou is a concrete slab carrying ST Romain RD over Tiger 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. Its operating status is: posted for load restriction.

It carries about 250 vehicles a day, projected to reach 275 by 2040. The structure is 57 ft (17.4 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesST Romain RD
CrossesTiger Bayou
Location4.4 MI NE Erwinville LA
RouteCounty Highway 0
CountyWest Baton Rouge Parish
StateLouisiana
Coordinates30.55938, -91.33798
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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 rating39.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic275 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 ST Romain RD over Tiger Bayou built?

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

What condition is ST Romain RD over Tiger 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 ST Romain RD over Tiger Bayou carry?

About 250 vehicles per day (2020 count).

How long is ST Romain RD over Tiger Bayou?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns ST Romain RD over Tiger Bayou?

It is owned by the County Highway Agency.