US Bridges

CR 500S over Darby Ditch

Fair

Benton County, Indiana · 00.60 E of CR 975 E · Structure no. 0400208

Built
2004
21 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
55
2013 count
Owner
County
County Highway Agency

About this bridge

CR 500S over Darby Ditch is a prestressed concrete box beam or girders - multiple carrying CR 500S over Darby Ditch in Benton County, Indiana. It was built in 2004, so it is 21 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 55 vehicles a day, roughly 8% of them trucks, projected to reach 69 by 2033. The structure is 50 ft (15.2 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 500S
CrossesDarby Ditch
Location00.60 E of CR 975 E
RouteCounty Highway 500
CountyBenton County
StateIndiana
Coordinates40.53382, -87.12587
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.5 US tons
Inventory rating36.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span44 ft (13.4 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2013)
Projected traffic69 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 500S over Darby Ditch built?

It was built in 2004, making it 21 years old in 2025.

What condition is CR 500S 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 500S over Darby Ditch carry?

About 55 vehicles per day (2013 count), of which roughly 8% are trucks.

How long is CR 500S over Darby Ditch?

The structure is 50 ft (15.2 m) long with a longest span of 44 ft (13.4 m) and a deck 28 ft wide.

Who owns CR 500S over Darby Ditch?

It is owned by the County Highway Agency.