US Bridges

NB US 67 over Swan Creek

Fair

Warren County, Illinois · 4.5 MI S Roseville · Structure no. 094003900000000

Built
1996
29 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
89 ft
1 main span
Daily traffic
4,900
2023 count
Owner
State
State Highway Agency

About this bridge

NB US 67 over Swan Creek is a prestressed concrete stringer/multi-beam or girder carrying NB US 67 over Swan Creek in Warren County, Illinois. It was built in 1996, so it is 29 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 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 4,900 vehicles a day, roughly 19% of them trucks, projected to reach 2,172 by 2046. The structure is 89 ft (27 m) long and 41 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesNB US 67
CrossesSwan Creek
Location4.5 MI S Roseville
RouteU.S. Route 67
CountyWarren County
StateIllinois
Coordinates40.66916, -90.67297
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum 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 alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length89 ft (27 m)
Longest span86 ft (26.2 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,900 (2023)
Projected traffic2,172 by 2046
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 NB US 67 over Swan Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is NB US 67 over Swan 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 2024.

How much traffic does NB US 67 over Swan Creek carry?

About 4,900 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is NB US 67 over Swan Creek?

The structure is 89 ft (27 m) long with a longest span of 86 ft (26.2 m) and a deck 41 ft wide.

Who owns NB US 67 over Swan Creek?

It is owned by the State Highway Agency.