US Bridges

CO 70 over Legg Branch

FairPosted for load

Lauderdale County, Alabama · 0.4 MI S of CO 26 · Structure no. 001615

Built
1937
88 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
46 ft
2 main spans
Daily traffic
205
1989 count
Owner
County
County Highway Agency

About this bridge

CO 70 over Legg Branch is a concrete tee beam carrying CO 70 over Legg Branch in Lauderdale County, Alabama. It was built in 1937, so it is 88 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 205 vehicles a day, roughly 10% of them trucks, projected to reach 410 by 2031. The structure is 46 ft (14 m) long and 23 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCO 70
CrossesLegg Branch
Location0.4 MI S of CO 26
RouteCounty Highway 70
CountyLauderdale County
StateAlabama
Coordinates34.84323, -87.22798
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating16 US tons
Inventory rating12 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length46 ft (14 m)
Longest span23 ft (7 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic205 (1989)
Projected traffic410 by 2031
Trucks10%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$360,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO 70 over Legg Branch built?

It was built in 1937, making it 88 years old in 2025.

What condition is CO 70 over Legg 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 September 2024.

How much traffic does CO 70 over Legg Branch carry?

About 205 vehicles per day (1989 count), of which roughly 10% are trucks.

How long is CO 70 over Legg Branch?

The structure is 46 ft (14 m) long with a longest span of 23 ft (7 m) and a deck 23 ft wide.

Who owns CO 70 over Legg Branch?

It is owned by the County Highway Agency.