US Bridges

SR 109 MP 8.576 over Harkin Branch

Good

Houston County, Alabama · 1.3 Mi. S. US 231 · Structure no. 013050

Built
1983
42 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
4,120
2013 count
Owner
State
State Highway Agency

About this bridge

SR 109 MP 8.576 over Harkin Branch is a concrete culvert carrying SR 109 MP 8.576 over Harkin Branch in Houston County, Alabama. It was built in 1983, so it is 42 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,120 vehicles a day, roughly 7% of them trucks, projected to reach 5,027 by 2033. The structure is 36 ft (11 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR 109 MP 8.576
CrossesHarkin Branch
Location1.3 Mi. S. US 231
RouteState Highway 109
CountyHouston County
StateAlabama
Coordinates31.09842, -85.42477
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.6 US tons
Inventory rating30.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length36 ft (11 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,120 (2013)
Projected traffic5,027 by 2033
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$596,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 109 MP 8.576 over Harkin Branch built?

It was built in 1983, making it 42 years old in 2025.

What condition is SR 109 MP 8.576 over Harkin Branch 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 July 2024.

How much traffic does SR 109 MP 8.576 over Harkin Branch carry?

About 4,120 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is SR 109 MP 8.576 over Harkin Branch?

The structure is 36 ft (11 m) long with a longest span of 11 ft (3.5 m).

Who owns SR 109 MP 8.576 over Harkin Branch?

It is owned by the State Highway Agency.