US Bridges

US 31 NB over Central RR

Good

Howard County, Indiana · 01.56 N US 35 · Structure no. 080508

Built
2013
12 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
23,187
2021 count
Owner
State
State Highway Agency

About this bridge

US 31 NB over Central RR is a prestressed concrete tee beam carrying US 31 NB over Central RR in Howard County, Indiana. It was built in 2013, so it is 12 years old, younger than the Indiana average of 46.6 years.

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

It carries about 23,187 vehicles a day, roughly 12% of them trucks, projected to reach 15,000 by 2031. The structure is 76 ft (23.1 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesUS 31 NB
CrossesCentral RR
Location01.56 N US 35
RouteU.S. Route 31
CountyHoward County
StateIndiana
Coordinates40.49869, -86.08804
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating45.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length76 ft (23.1 m)
Longest span74 ft (22.7 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,187 (2021)
Projected traffic15,000 by 2031
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 31 NB over Central RR built?

It was built in 2013, making it 12 years old in 2025.

What condition is US 31 NB over Central 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 August 2024.

How much traffic does US 31 NB over Central RR carry?

About 23,187 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is US 31 NB over Central RR?

The structure is 76 ft (23.1 m) long with a longest span of 74 ft (22.7 m) and a deck 44 ft wide.

Who owns US 31 NB over Central RR?

It is owned by the State Highway Agency.