US Bridges

SR 331 over Armey Ditch

Good

Marshall County, Indiana · 00.45 N SR 106 · Structure no. 031470

Built
1982
43 years old, rebuilt 2005
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
87 ft
3 main spans
Daily traffic
5,609
2018 count
Owner
State
State Highway Agency

About this bridge

SR 331 over Armey Ditch is a concrete continuous slab carrying SR 331 over Armey Ditch in Marshall County, Indiana. It was built in 1982 and reconstructed in 2005, so it is 43 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 5,609 vehicles a day, roughly 16% of them trucks, projected to reach 14,717 by 2030. The structure is 87 ft (26.6 m) long and 47 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 331
CrossesArmey Ditch
Location00.45 N SR 106
RouteState Highway 331
CountyMarshall County
StateIndiana
Coordinates41.45295, -86.15617
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length87 ft (26.6 m)
Longest span34 ft (10.3 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,609 (2018)
Projected traffic14,717 by 2030
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 331 over Armey Ditch built?

It was built in 1982, making it 43 years old in 2025. It was reconstructed in 2005.

What condition is SR 331 over Armey Ditch 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 May 2023.

How much traffic does SR 331 over Armey Ditch carry?

About 5,609 vehicles per day (2018 count), of which roughly 16% are trucks.

How long is SR 331 over Armey Ditch?

The structure is 87 ft (26.6 m) long with a longest span of 34 ft (10.3 m) and a deck 47 ft wide.

Who owns SR 331 over Armey Ditch?

It is owned by the State Highway Agency.