US Bridges

Slane RD - TR 186 over Br Prince Run

PoorPosted for load

Peoria County, Illinois · NW-20-AKRON · Structure no. 072420500000000

Built
1962
63 years old
Condition
Poor
inspected September 2024
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
50
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Slane RD - TR 186 over Br Prince Run is a concrete continuous culvert carrying Slane RD - TR 186 over Br Prince Run in Peoria County, Illinois. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 51 by 2046. The structure is 34 ft (10.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSlane RD - TR 186
CrossesBr Prince Run
LocationNW-20-AKRON
RouteCounty Highway 0
CountyPeoria County
StateIllinois
Coordinates40.92602, -89.73578
Functional classRural Local

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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating27.4 US tons
Inventory rating16.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length34 ft (10.5 m)
Longest span17 ft (5.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic51 by 2046
Trucks0%
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

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 Slane RD - TR 186 over Br Prince Run built?

It was built in 1962, making it 63 years old in 2025.

What condition is Slane RD - TR 186 over Br Prince Run 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 September 2024.

How much traffic does Slane RD - TR 186 over Br Prince Run carry?

About 50 vehicles per day (2022 count).

How long is Slane RD - TR 186 over Br Prince Run?

The structure is 34 ft (10.5 m) long with a longest span of 17 ft (5.1 m).

Who owns Slane RD - TR 186 over Br Prince Run?

It is owned by the Town or Township Highway Agency.