US Bridges

SR 32 over Isenhour Ditch

Fair

Boone County, Indiana · 01.97 E SR 39 · Structure no. 010582

Built
2000
25 years old, rebuilt 2016
Condition
Fair
inspected February 2024
Type
Slab
Concrete Continuous
Length
79 ft
3 main spans
Daily traffic
3,770
2016 count
Owner
State
State Highway Agency

About this bridge

SR 32 over Isenhour Ditch is a concrete continuous slab carrying SR 32 over Isenhour Ditch in Boone County, Indiana. It was built in 2000 and reconstructed in 2016, so it is 25 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 3,770 vehicles a day, roughly 8% of them trucks, projected to reach 4,540 by 2036. The structure is 79 ft (24 m) long and 48 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSR 32
CrossesIsenhour Ditch
Location01.97 E SR 39
RouteState Highway 32
CountyBoone County
StateIndiana
Coordinates40.03923, -86.43662
Functional classRural Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating43.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length79 ft (24 m)
Longest span30 ft (9 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,770 (2016)
Projected traffic4,540 by 2036
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 32 over Isenhour Ditch built?

It was built in 2000, making it 25 years old in 2025. It was reconstructed in 2016.

What condition is SR 32 over Isenhour 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 February 2024.

How much traffic does SR 32 over Isenhour Ditch carry?

About 3,770 vehicles per day (2016 count), of which roughly 8% are trucks.

How long is SR 32 over Isenhour Ditch?

The structure is 79 ft (24 m) long with a longest span of 30 ft (9 m) and a deck 48 ft wide.

Who owns SR 32 over Isenhour Ditch?

It is owned by the State Highway Agency.