US Bridges

TR 20 Johnny Run R over Waupecon Creek

Fair

Grundy County, Illinois · .3 MI S Prairie RD · Structure no. 032488100000000

Built
1983
42 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Concrete
Length
102 ft
3 main spans
Daily traffic
75
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 20 Johnny Run R over Waupecon Creek is a concrete channel beam carrying TR 20 Johnny Run R over Waupecon Creek in Grundy County, Illinois. It was built in 1983, so it is 42 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 75 vehicles a day, roughly 13% of them trucks, projected to reach 90 by 2046. The structure is 102 ft (31.1 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR 20 Johnny Run R
CrossesWaupecon Creek
Location.3 MI S Prairie RD
RouteCounty Highway 0
Coordinates41.20556, -88.54945
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span36 ft (11 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2024)
Projected traffic90 by 2046
Trucks13%
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

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 TR 20 Johnny Run R over Waupecon Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is TR 20 Johnny Run R over Waupecon 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 October 2024.

How much traffic does TR 20 Johnny Run R over Waupecon Creek carry?

About 75 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is TR 20 Johnny Run R over Waupecon Creek?

The structure is 102 ft (31.1 m) long with a longest span of 36 ft (11 m) and a deck 26 ft wide.

Who owns TR 20 Johnny Run R over Waupecon Creek?

It is owned by the Town or Township Highway Agency.