US Bridges

CO Rt 77 over Rock Creek

Fair

Winston County, Alabama · 3 MI E JCT CO Rt 41 · Structure no. 007453

Built
1961
64 years old
Condition
Fair
inspected February 2025
Type
Girder and Floorbeam System
Steel Continuous
Length
865 ft
4 main spans
Daily traffic
500
1991 count
Owner
County
County Highway Agency

About this bridge

CO Rt 77 over Rock Creek is a steel continuous girder and floorbeam system carrying CO Rt 77 over Rock Creek in Winston County, Alabama. It was built in 1961, so it is 64 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.

It carries about 500 vehicles a day, roughly 15% of them trucks, projected to reach 1,000 by 2032. The structure is 865 ft (263.7 m) long and 27 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesCO Rt 77
CrossesRock Creek
Location3 MI E JCT CO Rt 41
RouteCounty Highway 77
CountyWinston County
StateAlabama
Coordinates34.08795, -87.16961
Functional classRural Major Collector

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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating43.5 US tons
Inventory rating26 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+4 approach)
Design loadH 20
Structure length865 ft (263.7 m)
Longest span180 ft (54.9 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (1991)
Projected traffic1,000 by 2032
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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$5.2 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO Rt 77 over Rock Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is CO Rt 77 over Rock 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 February 2025.

How much traffic does CO Rt 77 over Rock Creek carry?

About 500 vehicles per day (1991 count), of which roughly 15% are trucks.

How long is CO Rt 77 over Rock Creek?

The structure is 865 ft (263.7 m) long with a longest span of 180 ft (54.9 m) and a deck 27 ft wide.

Who owns CO Rt 77 over Rock Creek?

It is owned by the County Highway Agency.