US Bridges

Shattuck RD over Mosquito Creek

Fair

Boone County, Illinois · 3.0 MI E Belvidere · Structure no. 004304800000000

Built
1958
67 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
60 ft
2 main spans
Daily traffic
750
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Shattuck RD over Mosquito Creek is a concrete slab carrying Shattuck RD over Mosquito Creek in Boone County, Illinois. It was built in 1958, so it is 67 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 750 vehicles a day, roughly 23% of them trucks, projected to reach 806 by 2046. The structure is 60 ft (18.4 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesShattuck RD
CrossesMosquito Creek
Location3.0 MI E Belvidere
RouteCounty Highway 0
CountyBoone County
StateIllinois
Coordinates42.23562, -88.77416
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45.3 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length60 ft (18.4 m)
Longest span29 ft (8.8 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2023)
Projected traffic806 by 2046
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Shattuck RD over Mosquito Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Shattuck RD over Mosquito 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 March 2024.

How much traffic does Shattuck RD over Mosquito Creek carry?

About 750 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is Shattuck RD over Mosquito Creek?

The structure is 60 ft (18.4 m) long with a longest span of 29 ft (8.8 m) and a deck 25 ft wide.

Who owns Shattuck RD over Mosquito Creek?

It is owned by the Town or Township Highway Agency.