US Bridges

Inwood RD over Geyer Ditch

Poor

St. Joseph County, Indiana · 00.60 E of Tamarack RD · Structure no. 7100032

Built
1925
100 years old, rebuilt 1988
Condition
Poor
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
176
2021 count
Owner
County
County Highway Agency

About this bridge

Inwood RD over Geyer Ditch is a prestressed concrete box beam or girders - multiple carrying Inwood RD over Geyer Ditch in St. Joseph County, Indiana. It was built in 1925 and reconstructed in 1988, so it is 100 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.

It carries about 176 vehicles a day, roughly 21% of them trucks, projected to reach 215 by 2041. The structure is 38 ft (11.5 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesInwood RD
CrossesGeyer Ditch
Location00.60 E of Tamarack RD
RouteCounty Highway 0
StateIndiana
Coordinates41.63572, -86.41763
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating62.4 US tons
Inventory rating37.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span35 ft (10.6 m)
Deck width32 ft (9.7 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic176 (2021)
Projected traffic215 by 2041
Trucks21%
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

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$1.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Inwood RD over Geyer Ditch built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1988.

What condition is Inwood RD over Geyer 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 September 2024.

How much traffic does Inwood RD over Geyer Ditch carry?

About 176 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is Inwood RD over Geyer Ditch?

The structure is 38 ft (11.5 m) long with a longest span of 35 ft (10.6 m) and a deck 32 ft wide.

Who owns Inwood RD over Geyer Ditch?

It is owned by the County Highway Agency.