US Bridges

Antwerp RD over Oberhaltzer Ditch

PoorPosted for load

Allen County, Indiana · 00.20 W Trammel Road · Structure no. 0200014

Built
1970
55 years old
Condition
Poor
inspected May 2024
Type
Slab
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
150
2024 count
Owner
County
County Highway Agency

About this bridge

Antwerp RD over Oberhaltzer Ditch is a prestressed concrete slab carrying Antwerp RD over Oberhaltzer Ditch in Allen County, Indiana. It was built in 1970, so it is 55 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 5% of them trucks, projected to reach 225 by 2044. The structure is 26 ft (7.8 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesAntwerp RD
CrossesOberhaltzer Ditch
Location00.20 W Trammel Road
RouteCounty Highway 108
StateIndiana
Coordinates41.19575, -84.92949
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating25.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length26 ft (7.8 m)
Longest span24 ft (7.3 m)
Deck width32 ft (9.7 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2024)
Projected traffic225 by 2044
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$800,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Antwerp RD over Oberhaltzer Ditch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Antwerp RD over Oberhaltzer Ditch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Antwerp RD over Oberhaltzer Ditch carry?

About 150 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Antwerp RD over Oberhaltzer Ditch?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m) and a deck 32 ft wide.

Who owns Antwerp RD over Oberhaltzer Ditch?

It is owned by the County Highway Agency.