US Bridges

FAS 918 CH18 over Glenns Creek

Good

Jackson County, Illinois · S Line Sec 34-7-2 · Structure no. 039300800000000

Built
1953
72 years old
Condition
Good
inspected March 2023
Type
Tee Beam
Concrete
Length
42 ft
1 main span
Daily traffic
1,500
2023 count
Owner
County
County Highway Agency

About this bridge

FAS 918 CH18 over Glenns Creek is a concrete tee beam carrying FAS 918 CH18 over Glenns Creek in Jackson County, Illinois. It was built in 1953, so it is 72 years old, older 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 1,500 vehicles a day, roughly 14% of them trucks, projected to reach 1,717 by 2046. The structure is 42 ft (12.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFAS 918 CH18
CrossesGlenns Creek
LocationS Line Sec 34-7-2
RouteCounty Highway 0
CountyJackson County
StateIllinois
Coordinates37.86279, -89.3117
Functional classRural Major Collector

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating20.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length42 ft (12.9 m)
Longest span41 ft (12.6 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic1,717 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 FAS 918 CH18 over Glenns Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is FAS 918 CH18 over Glenns 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 March 2023.

How much traffic does FAS 918 CH18 over Glenns Creek carry?

About 1,500 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is FAS 918 CH18 over Glenns Creek?

The structure is 42 ft (12.9 m) long with a longest span of 41 ft (12.6 m) and a deck 28 ft wide.

Who owns FAS 918 CH18 over Glenns Creek?

It is owned by the County Highway Agency.