US Bridges

CR 750S over Lafferty Ditch

FairPosted for load

Clay County, Indiana · 00.30 W of CR 300 W · Structure no. 1100164

Built
1940
85 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
33 ft
1 main span
Daily traffic
119
2022 count
Owner
County
County Highway Agency

About this bridge

CR 750S over Lafferty Ditch is a concrete stringer/multi-beam or girder carrying CR 750S over Lafferty Ditch in Clay County, Indiana. It was built in 1940, so it is 85 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 119 vehicles a day, roughly 3% of them trucks, projected to reach 150 by 2042. The structure is 33 ft (10 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCR 750S
CrossesLafferty Ditch
Location00.30 W of CR 300 W
RouteCounty Highway 20
CountyClay County
StateIndiana
Coordinates39.2789, -87.17074
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating8.6 US tons
Inventory rating5.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10 m)
Longest span32 ft (9.9 m)
Deck width20 ft (6 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119 (2022)
Projected traffic150 by 2042
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-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$862,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 750S over Lafferty Ditch built?

It was built in 1940, making it 85 years old in 2025.

What condition is CR 750S over Lafferty 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 September 2024.

How much traffic does CR 750S over Lafferty Ditch carry?

About 119 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is CR 750S over Lafferty Ditch?

The structure is 33 ft (10 m) long with a longest span of 32 ft (9.9 m) and a deck 20 ft wide.

Who owns CR 750S over Lafferty Ditch?

It is owned by the County Highway Agency.