US Bridges

Kishwaukee ST over Keith Creek

Fair

Winnebago County, Illinois · 0.12 N of Broadway · Structure no. 101616000000000

Built
2009
16 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
14,600
2023 count
Owner
State
State Highway Agency

About this bridge

Kishwaukee ST over Keith Creek is a concrete culvert carrying Kishwaukee ST over Keith Creek in Winnebago County, Illinois. It was built in 2009, so it is 16 years old, younger 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 14,600 vehicles a day, roughly 7% of them trucks, projected to reach 14,847 by 2046. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKishwaukee ST
CrossesKeith Creek
Location0.12 N of Broadway
RouteState Highway 251
CountyWinnebago County
StateIllinois
Coordinates42.25521, -89.08675
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 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
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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length39 ft (11.9 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,600 (2023)
Projected traffic14,847 by 2046
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Kishwaukee ST over Keith Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Kishwaukee ST over Keith Creek 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 February 2023.

How much traffic does Kishwaukee ST over Keith Creek carry?

About 14,600 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Kishwaukee ST over Keith Creek?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.6 m).

Who owns Kishwaukee ST over Keith Creek?

It is owned by the State Highway Agency.