US Bridges

Herbemont RD over Lake Ditch

Fair

Morgan County, Indiana · 00.45 W of Yale Ferguson · Structure no. 5500082

Built
1976
49 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
107 ft
3 main spans
Daily traffic
110
2023 count
Owner
County
County Highway Agency

About this bridge

Herbemont RD over Lake Ditch is a concrete continuous slab carrying Herbemont RD over Lake Ditch in Morgan County, Indiana. It was built in 1976, so it is 49 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 110 vehicles a day, roughly 5% of them trucks, projected to reach 190 by 2043. The structure is 107 ft (32.6 m) long and 28 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesHerbemont RD
CrossesLake Ditch
Location00.45 W of Yale Ferguson
RouteCounty Highway 11
CountyMorgan County
StateIndiana
Coordinates39.56396, -86.56407
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to 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 rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length107 ft (32.6 m)
Longest span41 ft (12.4 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2023)
Projected traffic190 by 2043
Trucks5%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$760,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Herbemont RD over Lake Ditch built?

It was built in 1976, making it 49 years old in 2025.

What condition is Herbemont RD over Lake 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 August 2024.

How much traffic does Herbemont RD over Lake Ditch carry?

About 110 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Herbemont RD over Lake Ditch?

The structure is 107 ft (32.6 m) long with a longest span of 41 ft (12.4 m) and a deck 28 ft wide.

Who owns Herbemont RD over Lake Ditch?

It is owned by the County Highway Agency.