US Bridges

CR 170 over Trib to Crow Creek

Fair

Jackson County, Alabama · 0.5 MI E JCT SR 117 · Structure no. 000847

Built
1930
95 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
36 ft
1 main span
Daily traffic
80
1990 count
Owner
County
County Highway Agency

About this bridge

CR 170 over Trib to Crow Creek is a concrete tee beam carrying CR 170 over Trib to Crow Creek in Jackson County, Alabama. It was built in 1930, so it is 95 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 80 vehicles a day, roughly 1% of them trucks, projected to reach 103 by 2039. The structure is 36 ft (11 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR 170
CrossesTrib to Crow Creek
Location0.5 MI E JCT SR 117
RouteCounty Highway 170
CountyJackson County
StateAlabama
Coordinates34.92297, -85.88767
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.9 US tons
Inventory rating37.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length36 ft (11 m)
Longest span36 ft (11 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (1990)
Projected traffic103 by 2039
Trucks1%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$388,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 170 over Trib to Crow Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is CR 170 over Trib to Crow 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 April 2023.

How much traffic does CR 170 over Trib to Crow Creek carry?

About 80 vehicles per day (1990 count), of which roughly 1% are trucks.

How long is CR 170 over Trib to Crow Creek?

The structure is 36 ft (11 m) long with a longest span of 36 ft (11 m) and a deck 30 ft wide.

Who owns CR 170 over Trib to Crow Creek?

It is owned by the County Highway Agency.