US Bridges

CR 975E over Darby Ditch

Fair

Benton County, Indiana · 00.20 N of CR 500 S · Structure no. 0400206

Built
2002
23 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
119
2013 count
Owner
County
County Highway Agency

About this bridge

CR 975E over Darby Ditch is a steel stringer/multi-beam or girder carrying CR 975E over Darby Ditch in Benton County, Indiana. It was built in 2002, so it is 23 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 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 119 vehicles a day, roughly 8% of them trucks, projected to reach 147 by 2033. The structure is 55 ft (16.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 975E
CrossesDarby Ditch
Location00.20 N of CR 500 S
RouteCounty Highway 975
CountyBenton County
StateIndiana
Coordinates40.53672, -87.13728
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.9 US tons
Inventory rating50.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.7 m)
Longest span49 ft (14.9 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119 (2013)
Projected traffic147 by 2033
Trucks8%
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 CR 975E over Darby Ditch built?

It was built in 2002, making it 23 years old in 2025.

What condition is CR 975E over Darby 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 May 2023.

How much traffic does CR 975E over Darby Ditch carry?

About 119 vehicles per day (2013 count), of which roughly 8% are trucks.

How long is CR 975E over Darby Ditch?

The structure is 55 ft (16.7 m) long with a longest span of 49 ft (14.9 m) and a deck 28 ft wide.

Who owns CR 975E over Darby Ditch?

It is owned by the County Highway Agency.