US Bridges

Huber Road over Mosquito Creek

Poor

Boone County, Illinois · 3.5 MI SE Belvidere · Structure no. 004307000000000

Built
1977
48 years old
Condition
Poor
inspected March 2024
Type
Culvert
Steel
Length
50 ft
4 main spans
Daily traffic
150
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Huber Road over Mosquito Creek is a steel culvert carrying Huber Road over Mosquito Creek in Boone County, Illinois. It was built in 1977, so it is 48 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 3 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.

It carries about 150 vehicles a day, roughly 29% of them trucks, projected to reach 156 by 2046. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesHuber Road
CrossesMosquito Creek
Location3.5 MI SE Belvidere
RouteCounty Highway 0
CountyBoone County
StateIllinois
Coordinates42.20535, -88.77456
Functional classUrban 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.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic156 by 2046
Trucks29%
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 Huber Road over Mosquito Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Huber Road over Mosquito Creek 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 March 2024.

How much traffic does Huber Road over Mosquito Creek carry?

About 150 vehicles per day (2023 count), of which roughly 29% are trucks.

How long is Huber Road over Mosquito Creek?

The structure is 50 ft (15.2 m) long with a longest span of 11 ft (3.3 m).

Who owns Huber Road over Mosquito Creek?

It is owned by the Town or Township Highway Agency.