US Bridges

Kinzie St{ms 1100} over Clay-Creek

Good

Sangamon County, Illinois · Riverton Illinois · Structure no. 084650100000000

Built
1997
28 years old
Condition
Good
inspected March 2021
Type
Frame
Concrete
Length
29 ft
1 main span
Daily traffic
650
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kinzie St{ms 1100} over Clay-Creek is a concrete frame carrying Kinzie St{ms 1100} over Clay-Creek in Sangamon County, Illinois. It was built in 1997, so it is 28 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 650 vehicles a day, roughly 2% of them trucks, projected to reach 152 by 2046. The structure is 29 ft (8.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesKinzie St{ms 1100}
CrossesClay-Creek
LocationRiverton Illinois
RouteCity Street 0
Coordinates39.84959, -89.53732
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width43 ft (13.2 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2022)
Projected traffic152 by 2046
Trucks2%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Kinzie St{ms 1100} over Clay-Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Kinzie St{ms 1100} over Clay-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 2021.

How much traffic does Kinzie St{ms 1100} over Clay-Creek carry?

About 650 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Kinzie St{ms 1100} over Clay-Creek?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 43 ft wide.

Who owns Kinzie St{ms 1100} over Clay-Creek?

It is owned by the City or Municipal Highway Agency.