US Bridges

Minooka RD / Ch 16 over I-80

Fair

Grundy County, Illinois · 2.56 M W Minooka Int · Structure no. 032011900000000

Built
2015
10 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
386 ft
2 main spans
Daily traffic
1,900
2024 count
Owner
State
State Highway Agency

About this bridge

Minooka RD / Ch 16 over I-80 is a steel continuous stringer/multi-beam or girder carrying Minooka RD / Ch 16 over I-80 in Grundy County, Illinois. It was built in 2015, so it is 10 years old, younger than the Illinois average of 45.3 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 1,900 vehicles a day, roughly 15% of them trucks, projected to reach 1,800 by 2046. The structure is 386 ft (117.6 m) long and 70 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesMinooka RD / Ch 16
CrossesI-80
Location2.56 M W Minooka Int
CountyGrundy County
StateIllinois
Coordinates41.4539, -88.31763
Functional classUrban 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.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating56.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length386 ft (117.6 m)
Longest span200 ft (61 m)
Deck width70 ft (21.3 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2024)
Projected traffic1,800 by 2046
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Minooka RD / Ch 16 over I-80 built?

It was built in 2015, making it 10 years old in 2025.

What condition is Minooka RD / Ch 16 over I-80 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 2023.

How much traffic does Minooka RD / Ch 16 over I-80 carry?

About 1,900 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is Minooka RD / Ch 16 over I-80?

The structure is 386 ft (117.6 m) long with a longest span of 200 ft (61 m) and a deck 70 ft wide.

Who owns Minooka RD / Ch 16 over I-80?

It is owned by the State Highway Agency.