US Bridges

Darwin Road over Ditch to Wabash River

Fair

Vigo County, Indiana · 00.30 E Robinson · Structure no. 8400107

Built
1928
97 years old, rebuilt 2002
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
565
2017 count
Owner
County
County Highway Agency

About this bridge

Darwin Road over Ditch to Wabash River is a prestressed concrete box beam or girders - multiple carrying Darwin Road over Ditch to Wabash River in Vigo County, Indiana. It was built in 1928 and reconstructed in 2002, so it is 97 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.

It carries about 565 vehicles a day, roughly 3% of them trucks, projected to reach 754 by 2037. The structure is 28 ft (8.5 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesDarwin Road
CrossesDitch to Wabash River
Location00.30 E Robinson
RouteCounty Highway 0
StateIndiana
Coordinates39.39757, -87.50478
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating100 US tons
Inventory rating64.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span26 ft (7.8 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic565 (2017)
Projected traffic754 by 2037
Trucks3%
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 Darwin Road over Ditch to Wabash River built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 2002.

What condition is Darwin Road over Ditch to Wabash River 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 July 2023.

How much traffic does Darwin Road over Ditch to Wabash River carry?

About 565 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Darwin Road over Ditch to Wabash River?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.8 m) and a deck 24 ft wide.

Who owns Darwin Road over Ditch to Wabash River?

It is owned by the County Highway Agency.