US Bridges

County Road 17 over Cunningham Branch

Good

Shelby County, Alabama · 1.1 Mi. No. CR 22 · Structure no. 018953

Built
2005
20 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
3,736
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 17 over Cunningham Branch is a concrete culvert carrying County Road 17 over Cunningham Branch in Shelby County, Alabama. It was built in 2005, so it is 20 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 3,736 vehicles a day, roughly 25% of them trucks, projected to reach 5,231 by 2043. The structure is 26 ft (7.9 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCounty Road 17
CrossesCunningham Branch
Location1.1 Mi. No. CR 22
RouteCounty Highway 17
CountyShelby County
StateAlabama
Coordinates33.16635, -86.86152
Functional classUrban 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating49.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.5 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,736 (2023)
Projected traffic5,231 by 2043
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$405,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 17 over Cunningham Branch built?

It was built in 2005, making it 20 years old in 2025.

What condition is County Road 17 over Cunningham 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 September 2023.

How much traffic does County Road 17 over Cunningham Branch carry?

About 3,736 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is County Road 17 over Cunningham Branch?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.5 m) and a deck 43 ft wide.

Who owns County Road 17 over Cunningham Branch?

It is owned by the County Highway Agency.