US Bridges

US 31 NB over CR 100 N

Good

Howard County, Indiana · 01.24 N SR 22 · Structure no. 080504

Built
2013
12 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
83 ft
1 main span
Daily traffic
9,742
2021 count
Owner
State
State Highway Agency

About this bridge

US 31 NB over CR 100 N is a prestressed concrete tee beam carrying US 31 NB over CR 100 N 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 9,742 vehicles a day, roughly 19% of them trucks, projected to reach 15,000 by 2031. The structure is 83 ft (25.2 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 31 NB
CrossesCR 100 N
Location01.24 N SR 22
RouteU.S. Route 31
StateIndiana
Coordinates40.49426, -86.08762
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 evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length83 ft (25.2 m)
Longest span80 ft (24.5 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,742 (2021)
Projected traffic15,000 by 2031
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 CR 100 N built?

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

What condition is US 31 NB over CR 100 N 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 CR 100 N carry?

About 9,742 vehicles per day (2021 count), of which roughly 19% are trucks.

How long is US 31 NB over CR 100 N?

The structure is 83 ft (25.2 m) long with a longest span of 80 ft (24.5 m) and a deck 44 ft wide.

Who owns US 31 NB over CR 100 N?

It is owned by the State Highway Agency.