US Bridges

Crimmins Road over Unk Creek

Good

Kendall County, Illinois · 1 MI N of Newark · Structure no. 047309700000000

Built
1977
48 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
300
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Crimmins Road over Unk Creek is a concrete continuous culvert carrying Crimmins Road over Unk Creek in Kendall County, Illinois. It was built in 1977, so it is 48 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 300 vehicles a day, roughly 24% of them trucks, projected to reach 1,197 by 2046. The structure is 28 ft (8.5 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCrimmins Road
CrossesUnk Creek
Location1 MI N of Newark
RouteCounty Highway 0
Coordinates41.56355, -88.57974
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 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 rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width34 ft (10.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2024)
Projected traffic1,197 by 2046
Trucks24%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Crimmins Road over Unk Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Crimmins Road over Unk 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 Crimmins Road over Unk Creek carry?

About 300 vehicles per day (2024 count), of which roughly 24% are trucks.

How long is Crimmins Road over Unk Creek?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m) and a deck 34 ft wide.

Who owns Crimmins Road over Unk Creek?

It is owned by the Town or Township Highway Agency.