US Bridges

Pearl Street RD over Kingsbury Creek

Good

Boone County, Illinois · At Dekalb Co. Line · Structure no. 004501000000000

Built
1999
26 years old
Condition
Good
inspected March 2024
Type
Culvert
Steel
Length
23 ft
1 main span
Daily traffic
500
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Pearl Street RD over Kingsbury Creek is a steel culvert carrying Pearl Street RD over Kingsbury Creek in Boone County, Illinois. It was built in 1999, so it is 26 years old, younger 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 500 vehicles a day, roughly 11% of them trucks, projected to reach 546 by 2046. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesPearl Street RD
CrossesKingsbury Creek
LocationAt Dekalb Co. Line
RouteCounty Highway 0
Coordinates42.15346, -88.83787
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic546 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Pearl Street RD over Kingsbury Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Pearl Street RD over Kingsbury 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 2024.

How much traffic does Pearl Street RD over Kingsbury Creek carry?

About 500 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Pearl Street RD over Kingsbury Creek?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m).

Who owns Pearl Street RD over Kingsbury Creek?

It is owned by the Town or Township Highway Agency.