US Bridges

SR 331 over Armey Ditch

Fair

Marshall County, Indiana · 00.09 S SR 106 · Structure no. 031460

Built
1988
37 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
3,421
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 1988, so it is 37 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,421 vehicles a day, roughly 19% of them trucks, projected to reach 7,988 by 2030. The structure is 122 ft (37.2 m) long and 47 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR 331
CrossesArmey Ditch
Location00.09 S SR 106
RouteState Highway 331
CountyMarshall County
StateIndiana
Coordinates41.44667, -86.13666
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span46 ft (14 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,421 (2018)
Projected traffic7,988 by 2030
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 1988, making it 37 years old in 2025.

What condition is SR 331 over Armey Ditch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does SR 331 over Armey Ditch carry?

About 3,421 vehicles per day (2018 count), of which roughly 19% are trucks.

How long is SR 331 over Armey Ditch?

The structure is 122 ft (37.2 m) long with a longest span of 46 ft (14 m) and a deck 47 ft wide.

Who owns SR 331 over Armey Ditch?

It is owned by the State Highway Agency.