US Bridges

Grabill RD over Oberhaltzer Ditch

FairPosted for load

Allen County, Indiana · 00.20 E Cuba Road · Structure no. 0200017

Built
1937
88 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
312
2018 count
Owner
County
County Highway Agency

About this bridge

Grabill RD over Oberhaltzer Ditch is a concrete slab carrying Grabill RD over Oberhaltzer Ditch in Allen County, Indiana. It was built in 1937, so it is 88 years old, older 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. Its operating status is: posted for load restriction.

It carries about 312 vehicles a day, roughly 5% of them trucks, projected to reach 467 by 2038. The structure is 22 ft (6.7 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesGrabill RD
CrossesOberhaltzer Ditch
Location00.20 E Cuba Road
RouteCounty Highway 510
CountyAllen County
StateIndiana
Coordinates41.21006, -84.94096
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic312 (2018)
Projected traffic467 by 2038
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Grabill RD over Oberhaltzer Ditch built?

It was built in 1937, making it 88 years old in 2025.

What condition is Grabill RD over Oberhaltzer 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 June 2024.

How much traffic does Grabill RD over Oberhaltzer Ditch carry?

About 312 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Grabill RD over Oberhaltzer Ditch?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns Grabill RD over Oberhaltzer Ditch?

It is owned by the County Highway Agency.