US Bridges

Lock 17 Road over Stanley Branch

Fair

Jefferson County, Alabama · 500 W Betty Hill Road · Structure no. 001366

Built
1935
90 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
70 ft
3 main spans
Daily traffic
610
2023 count
Owner
County
County Highway Agency

About this bridge

Lock 17 Road over Stanley Branch is a concrete slab carrying Lock 17 Road over Stanley Branch in Jefferson County, Alabama. It was built in 1935, so it is 90 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 610 vehicles a day, roughly 22% of them trucks, projected to reach 900 by 2043. The structure is 70 ft (21.3 m) long and 27 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesLock 17 Road
CrossesStanley Branch
Location500 W Betty Hill Road
RouteCounty Highway 803
CountyJefferson County
StateAlabama
Coordinates33.43972, -87.24411
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span20 ft (6 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2023)
Projected traffic900 by 2043
Trucks22%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$572,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lock 17 Road over Stanley Branch built?

It was built in 1935, making it 90 years old in 2025.

What condition is Lock 17 Road over Stanley Branch 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 October 2023.

How much traffic does Lock 17 Road over Stanley Branch carry?

About 610 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is Lock 17 Road over Stanley Branch?

The structure is 70 ft (21.3 m) long with a longest span of 20 ft (6 m) and a deck 27 ft wide.

Who owns Lock 17 Road over Stanley Branch?

It is owned by the County Highway Agency.