US Bridges

US 31 over CSX RR 000459.5 Active

Fair

Chilton County, Alabama · RR 0.4 MI N Autuga Line · Structure no. 004273

Built
1952
73 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
162 ft
3 main spans
Daily traffic
1,650
2020 count
Owner
State
State Highway Agency

About this bridge

US 31 over CSX RR 000459.5 Active is a steel stringer/multi-beam or girder carrying US 31 over CSX RR 000459.5 Active in Chilton County, Alabama. It was built in 1952, so it is 73 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 1,650 vehicles a day, roughly 7% of them trucks, projected to reach 2,704 by 2039. The structure is 162 ft (49.4 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 31
CrossesCSX RR 000459.5 Active
LocationRR 0.4 MI N Autuga Line
RouteU.S. Route 31
CountyChilton County
StateAlabama
Coordinates32.7127, -86.4847
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.3 US tons
Inventory rating46.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length162 ft (49.4 m)
Longest span54 ft (16.5 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,650 (2020)
Projected traffic2,704 by 2039
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 31 over CSX RR 000459.5 Active built?

It was built in 1952, making it 73 years old in 2025.

What condition is US 31 over CSX RR 000459.5 Active 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 February 2025.

How much traffic does US 31 over CSX RR 000459.5 Active carry?

About 1,650 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is US 31 over CSX RR 000459.5 Active?

The structure is 162 ft (49.4 m) long with a longest span of 54 ft (16.5 m) and a deck 35 ft wide.

Who owns US 31 over CSX RR 000459.5 Active?

It is owned by the State Highway Agency.