US Bridges

Pines RD over Gilmer Bayou

Good

Caddo Parish, Louisiana · 0.3 Mi. So. of LA 51 · Structure no. 040932262935171

Built
1969
56 years old, rebuilt 1992
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
37 ft
4 main spans
Daily traffic
2,000
1979 count
Owner
City
City or Municipal Highway Agency

About this bridge

Pines RD over Gilmer Bayou is a concrete culvert carrying Pines RD over Gilmer Bayou in Caddo Parish, Louisiana. It was built in 1969 and reconstructed in 1992, so it is 56 years old, older 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 2,000 vehicles a day, projected to reach 2,200 by 1999. The structure is 37 ft (11.3 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesPines RD
CrossesGilmer Bayou
Location0.3 Mi. So. of LA 51
RouteCounty Highway 0
Coordinates32.43737, -93.86236
Functional classUrban 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.
Culvert7 GoodSome minor problems.
Last inspectionApril 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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span10 ft (3 m)
Deck width63 ft (19.1 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (1979)
Projected traffic2,200 by 1999
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Pines RD over Gilmer Bayou built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1992.

What condition is Pines RD over Gilmer 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 April 2023.

How much traffic does Pines RD over Gilmer Bayou carry?

About 2,000 vehicles per day (1979 count).

How long is Pines RD over Gilmer Bayou?

The structure is 37 ft (11.3 m) long with a longest span of 10 ft (3 m) and a deck 63 ft wide.

Who owns Pines RD over Gilmer Bayou?

It is owned by the City or Municipal Highway Agency.