US Bridges

CR 100 South over Iroquois River

Fair

Jasper County, Indiana · 0.36 Miles E of US 231 · Structure no. 3700065

Built
1968
57 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
96 ft
3 main spans
Daily traffic
223
2022 count
Owner
County
County Highway Agency

About this bridge

CR 100 South over Iroquois River is a concrete continuous slab carrying CR 100 South over Iroquois River in Jasper County, Indiana. It was built in 1968, so it is 57 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.

It carries about 223 vehicles a day, roughly 5% of them trucks, projected to reach 318 by 2042. The structure is 96 ft (29.4 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCR 100 South
CrossesIroquois River
Location0.36 Miles E of US 231
RouteCounty Highway 44
CountyJasper County
StateIndiana
Coordinates40.99791, -87.14412
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length96 ft (29.4 m)
Longest span36 ft (10.9 m)
Deck width29 ft (8.9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic223 (2022)
Projected traffic318 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.6 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was CR 100 South over Iroquois River built?

It was built in 1968, making it 57 years old in 2025.

What condition is CR 100 South over Iroquois River 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 CR 100 South over Iroquois River carry?

About 223 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is CR 100 South over Iroquois River?

The structure is 96 ft (29.4 m) long with a longest span of 36 ft (10.9 m) and a deck 29 ft wide.

Who owns CR 100 South over Iroquois River?

It is owned by the County Highway Agency.