US Bridges

CR 575 E over Iroquois River

Fair

Newton County, Indiana · 0.8 MI S CR 700 S · Structure no. 5600095

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
172 ft
3 main spans
Daily traffic
145
2024 count
Owner
County
County Highway Agency

About this bridge

CR 575 E over Iroquois River is a prestressed concrete continuous stringer/multi-beam or girder carrying CR 575 E over Iroquois River in Newton County, Indiana. It was built in 1977, so it is 48 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 145 vehicles a day, roughly 5% of them trucks, projected to reach 192 by 2044. The structure is 172 ft (52.4 m) long and 26 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCR 575 E
CrossesIroquois River
Location0.8 MI S CR 700 S
RouteCounty Highway 63
CountyNewton County
StateIndiana
Coordinates40.8834, -87.28514
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment6: Equal to present minimum criteria
Operating rating86 US tons
Inventory rating44.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span66 ft (20.1 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic145 (2024)
Projected traffic192 by 2044
Trucks5%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was CR 575 E over Iroquois River built?

It was built in 1977, making it 48 years old in 2025.

What condition is CR 575 E 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 September 2024.

How much traffic does CR 575 E over Iroquois River carry?

About 145 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is CR 575 E over Iroquois River?

The structure is 172 ft (52.4 m) long with a longest span of 66 ft (20.1 m) and a deck 26 ft wide.

Who owns CR 575 E over Iroquois River?

It is owned by the County Highway Agency.