US Bridges

Darwin RD over Darwin Branch

Fair

Madison County, Alabama · 0.2 MI No CO RD 269 · Structure no. 002625

Built
1941
84 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
33 ft
3 main spans
Daily traffic
650
1992 count
Owner
County
County Highway Agency

About this bridge

Darwin RD over Darwin Branch is a concrete slab carrying Darwin RD over Darwin Branch in Madison County, Alabama. It was built in 1941, so it is 84 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 650 vehicles a day, roughly 1% of them trucks, projected to reach 970 by 2029. The structure is 33 ft (10.1 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesDarwin RD
CrossesDarwin Branch
Location0.2 MI No CO RD 269
RouteCounty Highway 449
CountyMadison County
StateAlabama
Coordinates34.85111, -86.51615
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length33 ft (10.1 m)
Longest span8 ft (2.4 m)
Deck width43 ft (13.1 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (1992)
Projected traffic970 by 2029
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$546,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Darwin RD over Darwin Branch built?

It was built in 1941, making it 84 years old in 2025.

What condition is Darwin RD over Darwin 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 January 2025.

How much traffic does Darwin RD over Darwin Branch carry?

About 650 vehicles per day (1992 count), of which roughly 1% are trucks.

How long is Darwin RD over Darwin Branch?

The structure is 33 ft (10.1 m) long with a longest span of 8 ft (2.4 m) and a deck 43 ft wide.

Who owns Darwin RD over Darwin Branch?

It is owned by the County Highway Agency.