US Bridges

Maples RD over Bohnke Drain

Fair

Allen County, Indiana · 00.20 E Sampson RD · Structure no. 0200124

Built
1980
45 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
156
2018 count
Owner
County
County Highway Agency

About this bridge

Maples RD over Bohnke Drain is a prestressed concrete box beam or girders - multiple carrying Maples RD over Bohnke Drain in Allen County, Indiana. It was built in 1980, 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 fair condition with a lowest component rating of 5 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 156 vehicles a day, roughly 5% of them trucks, projected to reach 233 by 2038. The structure is 60 ft (18.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMaples RD
CrossesBohnke Drain
Location00.20 E Sampson RD
RouteCounty Highway 38
StateIndiana
Coordinates41.00798, -84.87865
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating38.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length60 ft (18.2 m)
Longest span56 ft (17 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic156 (2018)
Projected traffic233 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 Maples RD over Bohnke Drain built?

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

What condition is Maples RD over Bohnke Drain 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 2024.

How much traffic does Maples RD over Bohnke Drain carry?

About 156 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Maples RD over Bohnke Drain?

The structure is 60 ft (18.2 m) long with a longest span of 56 ft (17 m) and a deck 32 ft wide.

Who owns Maples RD over Bohnke Drain?

It is owned by the County Highway Agency.