US Bridges

US 31 Nbl over Ala RR

Good

Escambia County, Alabama · 2.2 MI N US 29 · Structure no. 016569

Built
2009
16 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
198 ft
3 main spans
Daily traffic
3,567
2021 count
Owner
State
State Highway Agency

About this bridge

US 31 Nbl over Ala RR is a prestressed concrete stringer/multi-beam or girder carrying US 31 Nbl over Ala RR in Escambia County, Alabama. It was built in 2009, so it is 16 years old, younger than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,567 vehicles a day, roughly 6% of them trucks, projected to reach 5,351 by 2041. The structure is 198 ft (60.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 31 Nbl
CrossesAla RR
Location2.2 MI N US 29
RouteU.S. Route 31
StateAlabama
Coordinates31.01941, -87.23646
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.4 US tons
Inventory rating52.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length198 ft (60.3 m)
Longest span70 ft (21.2 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,567 (2021)
Projected traffic5,351 by 2041
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost$2.3 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 31 Nbl over Ala RR built?

It was built in 2009, making it 16 years old in 2025.

What condition is US 31 Nbl over Ala RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does US 31 Nbl over Ala RR carry?

About 3,567 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is US 31 Nbl over Ala RR?

The structure is 198 ft (60.3 m) long with a longest span of 70 ft (21.2 m) and a deck 43 ft wide.

Who owns US 31 Nbl over Ala RR?

It is owned by the State Highway Agency.