US Bridges

CR437 Bobgriffinrd over South Prong Creek

Fair

Chilton County, Alabama · CR437 1MI N Cross RD Ch · Structure no. 008210

Built
1964
61 years old, rebuilt 1990
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
68 ft
2 main spans
Daily traffic
175
1985 count
Owner
County
County Highway Agency

About this bridge

CR437 Bobgriffinrd over South Prong Creek is a steel stringer/multi-beam or girder carrying CR437 Bobgriffinrd over South Prong Creek in Chilton County, Alabama. It was built in 1964 and reconstructed in 1990, so it is 61 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 6 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 175 vehicles a day, roughly 1% of them trucks, projected to reach 200 by 2031. The structure is 68 ft (20.7 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR437 Bobgriffinrd
CrossesSouth Prong Creek
LocationCR437 1MI N Cross RD Ch
RouteCounty Highway 0
CountyChilton County
StateAlabama
Coordinates32.75688, -86.56306
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length68 ft (20.7 m)
Longest span34 ft (10.3 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (1985)
Projected traffic200 by 2031
Trucks1%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$535,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR437 Bobgriffinrd over South Prong Creek built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1990.

What condition is CR437 Bobgriffinrd over South Prong 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 December 2024.

How much traffic does CR437 Bobgriffinrd over South Prong Creek carry?

About 175 vehicles per day (1985 count), of which roughly 1% are trucks.

How long is CR437 Bobgriffinrd over South Prong Creek?

The structure is 68 ft (20.7 m) long with a longest span of 34 ft (10.3 m) and a deck 25 ft wide.

Who owns CR437 Bobgriffinrd over South Prong Creek?

It is owned by the County Highway Agency.