US Bridges

Bihm RD over Drainge Canal

Good

St. Landry Parish, Louisiana · 0.1 Miles West of LA 35 · Structure no. 034930300921151

Built
2000
25 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
22 ft
3 main spans
Daily traffic
150
2020 count
Owner
County
County Highway Agency

About this bridge

Bihm RD over Drainge Canal is a concrete culvert carrying Bihm RD over Drainge Canal in St. Landry Parish, Louisiana. It was built in 2000, so it is 25 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 8 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 22 ft (6.7 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBihm RD
CrossesDrainge Canal
Location0.1 Miles West of LA 35
RouteCounty Highway 0
CountySt. Landry Parish
StateLouisiana
Coordinates30.49893, -92.18424
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2023
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.2 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span7 ft (2.1 m)
Deck width40 ft (12.2 m)
Roadway width0 ft (0 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 closed1.2 mi (2 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$114,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bihm RD over Drainge Canal built?

It was built in 2000, making it 25 years old in 2025.

What condition is Bihm RD over Drainge Canal 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 2023.

How much traffic does Bihm RD over Drainge Canal carry?

About 150 vehicles per day (2020 count).

How long is Bihm RD over Drainge Canal?

The structure is 22 ft (6.7 m) long with a longest span of 7 ft (2.1 m) and a deck 40 ft wide.

Who owns Bihm RD over Drainge Canal?

It is owned by the County Highway Agency.