US Bridges

Co. Rt. 21 over Satilpa Creek

FairPosted for load

Clarke County, Alabama · 1.79 Mi.Se JCT CO21*AL154 · Structure no. 007958

Built
1963
62 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete Continuous
Length
403 ft
3 main spans
Daily traffic
300
1995 count
Owner
County
County Highway Agency

About this bridge

Co. Rt. 21 over Satilpa Creek is a concrete continuous tee beam carrying Co. Rt. 21 over Satilpa Creek in Clarke County, Alabama. It was built in 1963, so it is 62 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. Its operating status is: posted for load restriction.

It carries about 300 vehicles a day, roughly 5% of them trucks, projected to reach 330 by 2042. The structure is 403 ft (122.8 m) long and 25 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesCo. Rt. 21
CrossesSatilpa Creek
Location1.79 Mi.Se JCT CO21*AL154
RouteCounty Highway 21
CountyClarke County
StateAlabama
Coordinates31.76745, -87.99327
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment6: Equal to present minimum criteria
Operating rating37.9 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+8 approach)
Design loadH 15
Structure length403 ft (122.8 m)
Longest span50 ft (15.2 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (1995)
Projected traffic330 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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$2.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. Rt. 21 over Satilpa Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Co. Rt. 21 over Satilpa Creek 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 November 2023.

How much traffic does Co. Rt. 21 over Satilpa Creek carry?

About 300 vehicles per day (1995 count), of which roughly 5% are trucks.

How long is Co. Rt. 21 over Satilpa Creek?

The structure is 403 ft (122.8 m) long with a longest span of 50 ft (15.2 m) and a deck 25 ft wide.

Who owns Co. Rt. 21 over Satilpa Creek?

It is owned by the County Highway Agency.