US Bridges

Swanson DR over S Br Mcdonald Crk

Fair

Winnebago County, Illinois · .2 MI S of Swanson R · Structure no. 101660200000000

Built
2007
18 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
57 ft
5 main spans
Daily traffic
1,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Swanson DR over S Br Mcdonald Crk is a concrete culvert carrying Swanson DR over S Br Mcdonald Crk in Winnebago County, Illinois. It was built in 2007, so it is 18 years old, younger 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 6 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 1,000 vehicles a day, roughly 18% of them trucks, projected to reach 1,010 by 2046. The structure is 57 ft (17.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSwanson DR
CrossesS Br Mcdonald Crk
Location.2 MI S of Swanson R
RouteCity Street 0
CountyWinnebago County
StateIllinois
Coordinates42.38911, -89.01327
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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 25 or greater
Structure length57 ft (17.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2022)
Projected traffic1,010 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Swanson DR over S Br Mcdonald Crk built?

It was built in 2007, making it 18 years old in 2025.

What condition is Swanson DR over S Br Mcdonald Crk 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 2024.

How much traffic does Swanson DR over S Br Mcdonald Crk carry?

About 1,000 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Swanson DR over S Br Mcdonald Crk?

The structure is 57 ft (17.5 m) long with a longest span of 10 ft (3 m).

Who owns Swanson DR over S Br Mcdonald Crk?

It is owned by the City or Municipal Highway Agency.