US Bridges

US 6 over SR 331

Good

Marshall County, Indiana · 01.74 W SR 106 (e. Jct.) · Structure no. 001735

Built
1980
45 years old, rebuilt 2001
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
164 ft
1 main span
Daily traffic
5,301
2017 count
Owner
State
State Highway Agency

About this bridge

US 6 over SR 331 is a steel continuous stringer/multi-beam or girder carrying US 6 over SR 331 in Marshall County, Indiana. It was built in 1980 and reconstructed in 2001, so it is 45 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 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 5,301 vehicles a day, roughly 23% of them trucks, projected to reach 8,486 by 2029. The structure is 164 ft (50.1 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 6
CrossesSR 331
Location01.74 W SR 106 (e. Jct.)
RouteU.S. Route 6
StateIndiana
Coordinates41.4607, -86.15627
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length164 ft (50.1 m)
Longest span96 ft (29.4 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,301 (2017)
Projected traffic8,486 by 2029
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 6 over SR 331 built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2001.

What condition is US 6 over SR 331 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 June 2024.

How much traffic does US 6 over SR 331 carry?

About 5,301 vehicles per day (2017 count), of which roughly 23% are trucks.

How long is US 6 over SR 331?

The structure is 164 ft (50.1 m) long with a longest span of 96 ft (29.4 m) and a deck 47 ft wide.

Who owns US 6 over SR 331?

It is owned by the State Highway Agency.