US Bridges

SR1/US431 over CSX Railroad

Fair

Randolph County, Alabama · Town of Roanoke · Structure no. 009584

Built
1968
57 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete Continuous
Length
146 ft
3 main spans
Daily traffic
7,127
2022 count
Owner
State
State Highway Agency

About this bridge

SR1/US431 over CSX Railroad is a concrete continuous tee beam carrying SR1/US431 over CSX Railroad in Randolph County, Alabama. It was built in 1968, so it is 57 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 7,127 vehicles a day, roughly 8% of them trucks, projected to reach 9,977 by 2042. The structure is 146 ft (44.5 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR1/US431
CrossesCSX Railroad
LocationTown of Roanoke
RouteU.S. Route 431
CountyRandolph County
StateAlabama
Coordinates33.13261, -85.35634
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.9 US tons
Inventory rating34.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length146 ft (44.5 m)
Longest span55 ft (16.8 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,127 (2022)
Projected traffic9,977 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1/US431 over CSX Railroad built?

It was built in 1968, making it 57 years old in 2025.

What condition is SR1/US431 over CSX Railroad 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 November 2023.

How much traffic does SR1/US431 over CSX Railroad carry?

About 7,127 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR1/US431 over CSX Railroad?

The structure is 146 ft (44.5 m) long with a longest span of 55 ft (16.8 m) and a deck 33 ft wide.

Who owns SR1/US431 over CSX Railroad?

It is owned by the State Highway Agency.