US Bridges

SR 331 over Armey Ditch

Fair

Marshall County, Indiana · 01.39 S SR 106 · Structure no. 031450

Built
1996
29 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
77 ft
3 main spans
Daily traffic
3,281
2021 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 1996, so it is 29 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 3,281 vehicles a day, roughly 22% of them trucks, projected to reach 6,766 by 2030. The structure is 77 ft (23.4 m) long and 48 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSR 331
CrossesArmey Ditch
Location01.39 S SR 106
RouteState Highway 331
CountyMarshall County
StateIndiana
Coordinates41.44, -86.11755
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length77 ft (23.4 m)
Longest span30 ft (9.1 m)
Deck width48 ft (14.7 m)
Roadway width45 ft (13.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,281 (2021)
Projected traffic6,766 by 2030
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 1996, making it 29 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 3,281 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is SR 331 over Armey Ditch?

The structure is 77 ft (23.4 m) long with a longest span of 30 ft (9.1 m) and a deck 48 ft wide.

Who owns SR 331 over Armey Ditch?

It is owned by the State Highway Agency.