US Bridges

SR 16 over Iroquois River

Fair

Newton County, Indiana · 01.06 W SR 55 · Structure no. 004190

Built
1996
29 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
180 ft
3 main spans
Daily traffic
2,022
2004 count
Owner
State
State Highway Agency

About this bridge

SR 16 over Iroquois River is a prestressed concrete continuous box beam or girders - multiple carrying SR 16 over Iroquois River in Newton County, Indiana. It was built in 1996, so it is 29 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 2,022 vehicles a day, roughly 10% of them trucks, projected to reach 3,357 by 2030. The structure is 180 ft (54.8 m) long and 38 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 16
CrossesIroquois River
Location01.06 W SR 55
RouteState Highway 16
CountyNewton County
StateIndiana
Coordinates40.86544, -87.32601
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating15 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length180 ft (54.8 m)
Longest span70 ft (21.3 m)
Deck width38 ft (11.7 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,022 (2004)
Projected traffic3,357 by 2030
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 16 over Iroquois River built?

It was built in 1996, making it 29 years old in 2025.

What condition is SR 16 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 January 2024.

How much traffic does SR 16 over Iroquois River carry?

About 2,022 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is SR 16 over Iroquois River?

The structure is 180 ft (54.8 m) long with a longest span of 70 ft (21.3 m) and a deck 38 ft wide.

Who owns SR 16 over Iroquois River?

It is owned by the State Highway Agency.