US Bridges

Gustafson RD over Beaver Creek

Fair

Boone County, Illinois · 3.5 MI NW Belvidere · Structure no. 004303400000000

Built
1958
67 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
101 ft
3 main spans
Daily traffic
125
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Gustafson RD over Beaver Creek is a concrete slab carrying Gustafson RD over Beaver 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 125 vehicles a day, roughly 4% of them trucks, projected to reach 130 by 2046. The structure is 101 ft (30.8 m) long and 27 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesGustafson RD
CrossesBeaver Creek
Location3.5 MI NW Belvidere
RouteCounty Highway 0
CountyBoone County
StateIllinois
Coordinates42.31833, -88.88161
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.5 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length101 ft (30.8 m)
Longest span38 ft (11.6 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2018)
Projected traffic130 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Gustafson RD over Beaver Creek built?

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

What condition is Gustafson RD over Beaver 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 July 2023.

How much traffic does Gustafson RD over Beaver Creek carry?

About 125 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Gustafson RD over Beaver Creek?

The structure is 101 ft (30.8 m) long with a longest span of 38 ft (11.6 m) and a deck 27 ft wide.

Who owns Gustafson RD over Beaver Creek?

It is owned by the Town or Township Highway Agency.