US Bridges

Minooka RD TR-3B over Saratoga Creek

Fair

Grundy County, Illinois · .71 MI W Middle RD · Structure no. 032376000000000

Built
1975
50 years old
Condition
Fair
inspected July 2024
Type
Channel Beam
Concrete
Length
34 ft
1 main span
Daily traffic
350
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Minooka RD TR-3B over Saratoga Creek is a concrete channel beam carrying Minooka RD TR-3B over Saratoga Creek in Grundy County, Illinois. It was built in 1975, so it is 50 years old, older 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 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 350 vehicles a day, roughly 28% of them trucks, projected to reach 360 by 2046. The structure is 34 ft (10.4 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesMinooka RD TR-3B
CrossesSaratoga Creek
Location.71 MI W Middle RD
RouteCounty Highway 0
CountyGrundy County
StateIllinois
Coordinates41.44406, -88.4565
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating34 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2024)
Projected traffic360 by 2046
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Minooka RD TR-3B over Saratoga Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Minooka RD TR-3B over Saratoga Creek 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 July 2024.

How much traffic does Minooka RD TR-3B over Saratoga Creek carry?

About 350 vehicles per day (2024 count), of which roughly 28% are trucks.

How long is Minooka RD TR-3B over Saratoga Creek?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 26 ft wide.

Who owns Minooka RD TR-3B over Saratoga Creek?

It is owned by the Town or Township Highway Agency.