US Bridges

Durbin RD over Still Branch

Fair

Tangipahoa Parish, Louisiana · W. End of Wardline RD · Structure no. 625330311903331

Built
1986
39 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
57 ft
3 main spans
Daily traffic
1,252
2022 count
Owner
County
County Highway Agency

About this bridge

Durbin RD over Still Branch is a concrete slab carrying Durbin RD over Still Branch in Tangipahoa Parish, Louisiana. It was built in 1986, so it is 39 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,252 vehicles a day, projected to reach 1,377 by 2042. The structure is 57 ft (17.4 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesDurbin RD
CrossesStill Branch
LocationW. End of Wardline RD
RouteCounty Highway 0
CountyTangipahoa Parish
StateLouisiana
Coordinates30.51768, -90.55438
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating46.4 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 width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,252 (2022)
Projected traffic1,377 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
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 Durbin RD over Still Branch built?

It was built in 1986, making it 39 years old in 2025.

What condition is Durbin RD over Still Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Durbin RD over Still Branch carry?

About 1,252 vehicles per day (2022 count).

How long is Durbin RD over Still Branch?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 31 ft wide.

Who owns Durbin RD over Still Branch?

It is owned by the County Highway Agency.