US Bridges

NFSR 724 over Johnson Creek

Good

Jackson County, Illinois · 0.1 Mi. S. of HWY 151 · Structure no. 090802000025114

Built
2016
9 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
100
2016 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR 724 over Johnson Creek is a concrete slab carrying NFSR 724 over Johnson Creek in Jackson County, Illinois. It was built in 2016, so it is 9 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2045. The structure is 24 ft (7.2 m) long and 29 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesNFSR 724
CrossesJohnson Creek
Location0.1 Mi. S. of HWY 151
RouteFederal Lands Road 724
Coordinates37.8408, -89.5161
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length24 ft (7.2 m)
Longest span19 ft (5.8 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2016)
Projected traffic150 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NFSR 724 over Johnson Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is NFSR 724 over Johnson Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does NFSR 724 over Johnson Creek carry?

About 100 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is NFSR 724 over Johnson Creek?

The structure is 24 ft (7.2 m) long with a longest span of 19 ft (5.8 m) and a deck 29 ft wide.

Who owns NFSR 724 over Johnson Creek?

It is owned by the U.S. Forest Service.