US Bridges

US 45&52 over N Br of Rock Creek

Fair

Kankakee County, Illinois · 0.3 MI N Manteno RD · Structure no. 046200200000000

Built
1967
58 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
5,900
2023 count
Owner
State
State Highway Agency

About this bridge

US 45&52 over N Br of Rock Creek is a concrete continuous culvert carrying US 45&52 over N Br of Rock Creek in Kankakee County, Illinois. It was built in 1967, so it is 58 years old, older 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 5,900 vehicles a day, roughly 14% of them trucks, projected to reach 7,395 by 2046. The structure is 22 ft (6.6 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS 45&52
CrossesN Br of Rock Creek
Location0.3 MI N Manteno RD
RouteU.S. Route 45
CountyKankakee County
StateIllinois
Coordinates41.25425, -87.87776
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating33.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span10 ft (3 m)
Deck width47 ft (14.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2023)
Projected traffic7,395 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 US 45&52 over N Br of Rock Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is US 45&52 over N Br of Rock 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 US 45&52 over N Br of Rock Creek carry?

About 5,900 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is US 45&52 over N Br of Rock Creek?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3 m) and a deck 47 ft wide.

Who owns US 45&52 over N Br of Rock Creek?

It is owned by the State Highway Agency.