US Bridges

United Gas RD over Tributary to Black Bayou

Good

Caddo Parish, Louisiana · 0.8 MI South of LA 168 · Structure no. 040932581940221

Built
1995
30 years old
Condition
Good
inspected February 2025
Type
Slab
Concrete
Length
38 ft
2 main spans
Daily traffic
38
2019 count
Owner
County
County Highway Agency

About this bridge

United Gas RD over Tributary to Black Bayou is a concrete slab carrying United Gas RD over Tributary to Black Bayou in Caddo Parish, Louisiana. It was built in 1995, so it is 30 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 38 vehicles a day, projected to reach 41 by 2039. The structure is 38 ft (11.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesUnited Gas RD
CrossesTributary to Black Bayou
Location0.8 MI South of LA 168
RouteCounty Highway 0
CountyCaddo Parish
StateLouisiana
Coordinates32.96273, -94.03574
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 protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span19 ft (5.8 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38 (2019)
Projected traffic41 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was United Gas RD over Tributary to Black Bayou built?

It was built in 1995, making it 30 years old in 2025.

What condition is United Gas RD over Tributary to Black 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 February 2025.

How much traffic does United Gas RD over Tributary to Black Bayou carry?

About 38 vehicles per day (2019 count).

How long is United Gas RD over Tributary to Black Bayou?

The structure is 38 ft (11.6 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns United Gas RD over Tributary to Black Bayou?

It is owned by the County Highway Agency.