US Bridges

Mill Road over Tensas River

Fair

Tensas Parish, Louisiana · Just W of Quebec RD · Structure no. 000043690-00005

Built
1987
38 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
258 ft
4 main spans
Daily traffic
50
2023 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

Mill Road over Tensas River is a prestressed concrete continuous stringer/multi-beam or girder carrying Mill Road over Tensas River in Tensas Parish, Louisiana. It was built in 1987, so it is 38 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 50 vehicles a day, projected to reach 75 by 2043. The structure is 258 ft (78.6 m) long and 27 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

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CarriesMill Road
CrossesTensas River
LocationJust W of Quebec RD
RouteFederal Lands Road 0
CountyTensas Parish
StateLouisiana
Coordinates32.349, -91.31583
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment7: Better than present minimum criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length258 ft (78.6 m)
Longest span65 ft (19.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Fish and Wildlife
Maintained byBureau of Fish and Wildlife
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 Mill Road over Tensas River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Mill Road over Tensas River 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 October 2023.

How much traffic does Mill Road over Tensas River carry?

About 50 vehicles per day (2023 count).

How long is Mill Road over Tensas River?

The structure is 258 ft (78.6 m) long with a longest span of 65 ft (19.8 m) and a deck 27 ft wide.

Who owns Mill Road over Tensas River?

It is owned by the Bureau of Fish and Wildlife.