US Bridges

Dominiques RD over Bayou Rouge

Good

St. Landry Parish, Louisiana · 0.02 Mi. N. of LA 107 · Structure no. 034930499920161

Built
2005
20 years old
Condition
Good
inspected January 2025
Type
Slab
Concrete
Length
140 ft
7 main spans
Daily traffic
125
2020 count
Owner
County
County Highway Agency

About this bridge

Dominiques RD over Bayou Rouge is a concrete slab carrying Dominiques RD over Bayou Rouge in St. Landry Parish, Louisiana. It was built in 2005, so it is 20 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 125 vehicles a day, projected to reach 137 by 2040. The structure is 140 ft (42.7 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesDominiques RD
CrossesBayou Rouge
Location0.02 Mi. N. of LA 107
RouteCounty Highway 0
CountySt. Landry Parish
StateLouisiana
Coordinates30.8253, -92.02724
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length140 ft (42.7 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2020)
Projected traffic137 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$463,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dominiques RD over Bayou Rouge built?

It was built in 2005, making it 20 years old in 2025.

What condition is Dominiques RD over Bayou Rouge 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 2025.

How much traffic does Dominiques RD over Bayou Rouge carry?

About 125 vehicles per day (2020 count).

How long is Dominiques RD over Bayou Rouge?

The structure is 140 ft (42.7 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Dominiques RD over Bayou Rouge?

It is owned by the County Highway Agency.