US Bridges

ST Clair CO Hw 79 over Broken Arrow Creek

Good

St. Clair County, Alabama · 0.3 MI NW Refuge Church · Structure no. 015213

Built
1990
35 years old
Condition
Good
inspected December 2024
Type
Channel Beam
Concrete
Length
136 ft
4 main spans
Daily traffic
350
1999 count
Owner
County
County Highway Agency

About this bridge

ST Clair CO Hw 79 over Broken Arrow Creek is a concrete channel beam carrying ST Clair CO Hw 79 over Broken Arrow Creek in St. Clair County, Alabama. It was built in 1990, so it is 35 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 350 vehicles a day, roughly 10% of them trucks, projected to reach 586 by 2029. The structure is 136 ft (41.5 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesST Clair CO Hw 79
CrossesBroken Arrow Creek
Location0.3 MI NW Refuge Church
RouteCounty Highway 79
StateAlabama
Coordinates33.67172, -86.23507
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating83.3 US tons
Inventory rating50 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span34 ft (10.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (1999)
Projected traffic586 by 2029
Trucks10%
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 proposedNone recorded
Estimated improvement cost$926,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST Clair CO Hw 79 over Broken Arrow Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is ST Clair CO Hw 79 over Broken Arrow Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does ST Clair CO Hw 79 over Broken Arrow Creek carry?

About 350 vehicles per day (1999 count), of which roughly 10% are trucks.

How long is ST Clair CO Hw 79 over Broken Arrow Creek?

The structure is 136 ft (41.5 m) long with a longest span of 34 ft (10.4 m) and a deck 24 ft wide.

Who owns ST Clair CO Hw 79 over Broken Arrow Creek?

It is owned by the County Highway Agency.