US Bridges

Johnny Run Road over Johnny Run

Fair

Grundy County, Illinois · 0.1 MI N Goodfarm RD · Structure no. 032335000000000

Built
1962
63 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
87 ft
3 main spans
Daily traffic
150
2024 count
Owner
County
County Highway Agency

About this bridge

Johnny Run Road over Johnny Run is a concrete continuous slab carrying Johnny Run Road over Johnny Run in Grundy County, Illinois. It was built in 1962, so it is 63 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 150 vehicles a day, roughly 33% of them trucks, projected to reach 450 by 2046. The structure is 87 ft (26.5 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesJohnny Run Road
CrossesJohnny Run
Location0.1 MI N Goodfarm RD
RouteCounty Highway 0
CountyGrundy County
StateIllinois
Coordinates41.15376, -88.54811
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length87 ft (26.5 m)
Longest span32 ft (9.8 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2024)
Projected traffic450 by 2046
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Johnny Run Road over Johnny Run built?

It was built in 1962, making it 63 years old in 2025.

What condition is Johnny Run Road over Johnny Run 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 Johnny Run Road over Johnny Run carry?

About 150 vehicles per day (2024 count), of which roughly 33% are trucks.

How long is Johnny Run Road over Johnny Run?

The structure is 87 ft (26.5 m) long with a longest span of 32 ft (9.8 m) and a deck 26 ft wide.

Who owns Johnny Run Road over Johnny Run?

It is owned by the County Highway Agency.