US Bridges

Tanner Road over Wolf Branch

Fair

Morgan County, Alabama · 1.0 MI S CR 025 · Structure no. 003710

Built
1950
75 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
330
2006 count
Owner
County
County Highway Agency

About this bridge

Tanner Road over Wolf Branch is a concrete culvert carrying Tanner Road over Wolf Branch in Morgan County, Alabama. It was built in 1950, so it is 75 years old, older than the Alabama average of 51.1 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 330 vehicles a day, roughly 5% of them trucks, projected to reach 657 by 2042. The structure is 25 ft (7.6 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesTanner Road
CrossesWolf Branch
Location1.0 MI S CR 025
RouteCounty Highway 21
CountyMorgan County
StateAlabama
Coordinates34.37898, -87.0576
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length25 ft (7.6 m)
Longest span9 ft (2.7 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2006)
Projected traffic657 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$197,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Tanner Road over Wolf Branch built?

It was built in 1950, making it 75 years old in 2025.

What condition is Tanner Road over Wolf 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 March 2023.

How much traffic does Tanner Road over Wolf Branch carry?

About 330 vehicles per day (2006 count), of which roughly 5% are trucks.

How long is Tanner Road over Wolf Branch?

The structure is 25 ft (7.6 m) long with a longest span of 9 ft (2.7 m) and a deck 22 ft wide.

Who owns Tanner Road over Wolf Branch?

It is owned by the County Highway Agency.