US Bridges

No. First Street over So Br Kishwaukee Riv

Good

DeKalb County, Illinois · 0.6 Mi. N. of Il 38 · Structure no. 019610800000000

Built
2023
2 years old
Condition
Good
inspected December 2024
Type
Slab
Concrete Continuous
Length
116 ft
3 main spans
Daily traffic
5,950
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

No. First Street over So Br Kishwaukee Riv is a concrete continuous slab carrying No. First Street over So Br Kishwaukee Riv in DeKalb County, Illinois. It was built in 2023, so it is 2 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 5,950 vehicles a day, roughly 3% of them trucks, projected to reach 6,664 by 2046. The structure is 116 ft (35.4 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNo. First Street
CrossesSo Br Kishwaukee Riv
Location0.6 Mi. N. of Il 38
CountyDeKalb County
StateIllinois
Coordinates41.93949, -88.74987
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating62.8 US tons
Inventory rating48.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length116 ft (35.4 m)
Longest span43 ft (13.1 m)
Deck width58 ft (17.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,950 (2021)
Projected traffic6,664 by 2046
Trucks3%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was No. First Street over So Br Kishwaukee Riv built?

It was built in 2023, making it 2 years old in 2025.

What condition is No. First Street over So Br Kishwaukee Riv 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 December 2024.

How much traffic does No. First Street over So Br Kishwaukee Riv carry?

About 5,950 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is No. First Street over So Br Kishwaukee Riv?

The structure is 116 ft (35.4 m) long with a longest span of 43 ft (13.1 m) and a deck 58 ft wide.

Who owns No. First Street over So Br Kishwaukee Riv?

It is owned by the City or Municipal Highway Agency.