US Bridges

FAS621 CH-10 over Praire Creek Trib

Good

Sangamon County, Illinois · 3.0 MI S Plsnt Plns · Structure no. 084363300000000

Built
2002
23 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
850
2022 count
Owner
County
County Highway Agency

About this bridge

FAS621 CH-10 over Praire Creek Trib is a prestressed concrete box beam or girders - multiple carrying FAS621 CH-10 over Praire Creek Trib in Sangamon County, Illinois. It was built in 2002, so it is 23 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 850 vehicles a day, roughly 15% of them trucks, projected to reach 960 by 2046. The structure is 59 ft (18.1 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAS621 CH-10
CrossesPraire Creek Trib
Location3.0 MI S Plsnt Plns
RouteCounty Highway 0
Coordinates39.82232, -89.9186
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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length59 ft (18.1 m)
Longest span57 ft (17.3 m)
Deck width36 ft (11 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2022)
Projected traffic960 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 FAS621 CH-10 over Praire Creek Trib built?

It was built in 2002, making it 23 years old in 2025.

What condition is FAS621 CH-10 over Praire Creek Trib 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 April 2024.

How much traffic does FAS621 CH-10 over Praire Creek Trib carry?

About 850 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is FAS621 CH-10 over Praire Creek Trib?

The structure is 59 ft (18.1 m) long with a longest span of 57 ft (17.3 m) and a deck 36 ft wide.

Who owns FAS621 CH-10 over Praire Creek Trib?

It is owned by the County Highway Agency.