US Bridges

Jefferson Street over Rocky Run Creek

Good

Bureau County, Illinois · W Center of Tiskilwa · Structure no. 006800000000000

Built
2021
4 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
125
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Jefferson Street over Rocky Run Creek is a concrete culvert carrying Jefferson Street over Rocky Run Creek in Bureau County, Illinois. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 125 vehicles a day, roughly 2% of them trucks, projected to reach 126 by 2046. The structure is 23 ft (7 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesJefferson Street
CrossesRocky Run Creek
LocationW Center of Tiskilwa
RouteCity Street 0
Coordinates41.29422, -89.51417
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 protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width32 ft (9.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2020)
Projected traffic126 by 2046
Trucks2%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Jefferson Street over Rocky Run Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is Jefferson Street over Rocky Run 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 August 2023.

How much traffic does Jefferson Street over Rocky Run Creek carry?

About 125 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Jefferson Street over Rocky Run Creek?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 32 ft wide.

Who owns Jefferson Street over Rocky Run Creek?

It is owned by the City or Municipal Highway Agency.