US Bridges

ILL.17 over Horse Cr.

Poor

Kankakee County, Illinois · 0.7 M E Union Hill · Structure no. 046003100000000

Built
1958
67 years old, rebuilt 1995
Condition
Poor
inspected January 2024
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
2,950
2023 count
Owner
State
State Highway Agency

About this bridge

ILL.17 over Horse Cr. is a concrete continuous slab carrying ILL.17 over Horse Cr. in Kankakee County, Illinois. It was built in 1958 and reconstructed in 1995, so it is 67 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,950 vehicles a day, roughly 14% of them trucks, projected to reach 2,499 by 2046. The structure is 90 ft (27.4 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesILL.17
CrossesHorse Cr.
Location0.7 M E Union Hill
RouteState Highway 17
Coordinates41.11631, -88.13584
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span34 ft (10.4 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,950 (2023)
Projected traffic2,499 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 ILL.17 over Horse Cr. built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1995.

What condition is ILL.17 over Horse Cr. in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does ILL.17 over Horse Cr. carry?

About 2,950 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is ILL.17 over Horse Cr.?

The structure is 90 ft (27.4 m) long with a longest span of 34 ft (10.4 m) and a deck 36 ft wide.

Who owns ILL.17 over Horse Cr.?

It is owned by the State Highway Agency.