US Bridges

US 431 MP 16.659 over CSX R.R.

Fair

Houston County, Alabama · 0.1 Mi. N. Jct. U.S. 231 · Structure no. 001385

Built
1936
89 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
367 ft
4 main spans
Daily traffic
10,630
2013 count
Owner
State
State Highway Agency

About this bridge

US 431 MP 16.659 over CSX R.R. is a steel stringer/multi-beam or girder carrying US 431 MP 16.659 over CSX R.R. in Houston County, Alabama. It was built in 1936, so it is 89 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 10,630 vehicles a day, roughly 5% of them trucks, projected to reach 13,763 by 2033. The structure is 367 ft (111.9 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesUS 431 MP 16.659
CrossesCSX R.R.
Location0.1 Mi. N. Jct. U.S. 231
RouteU.S. Route 431
CountyHouston County
StateAlabama
Coordinates31.23795, -85.39682
Functional classUrban Other Principal Arterial

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.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating42.5 US tons
Inventory rating24.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4 (+5 approach)
Design loadH 15
Structure length367 ft (111.9 m)
Longest span61 ft (18.6 m)
Deck width35 ft (10.7 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,630 (2013)
Projected traffic13,763 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$3.2 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 431 MP 16.659 over CSX R.R. built?

It was built in 1936, making it 89 years old in 2025.

What condition is US 431 MP 16.659 over CSX R.R. 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 June 2023.

How much traffic does US 431 MP 16.659 over CSX R.R. carry?

About 10,630 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is US 431 MP 16.659 over CSX R.R.?

The structure is 367 ft (111.9 m) long with a longest span of 61 ft (18.6 m) and a deck 35 ft wide.

Who owns US 431 MP 16.659 over CSX R.R.?

It is owned by the State Highway Agency.