US Bridges

FAS 450 - Ch 19 over Little Swan Creek

Good

Warren County, Illinois · NW-25-T8NR2W · Structure no. 094452400000000

Built
1986
39 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
75
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

FAS 450 - Ch 19 over Little Swan Creek is a prestressed concrete box beam or girders - multiple carrying FAS 450 - Ch 19 over Little Swan Creek in Warren County, Illinois. It was built in 1986, so it is 39 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, roughly 19% of them trucks, projected to reach 76 by 2046. The structure is 62 ft (18.9 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFAS 450 - Ch 19
CrossesLittle Swan Creek
LocationNW-25-T8NR2W
RouteCounty Highway 0
Coordinates40.66015, -90.57308
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span59 ft (18 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2016)
Projected traffic76 by 2046
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 FAS 450 - Ch 19 over Little Swan Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is FAS 450 - Ch 19 over Little Swan Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does FAS 450 - Ch 19 over Little Swan Creek carry?

About 75 vehicles per day (2016 count), of which roughly 19% are trucks.

How long is FAS 450 - Ch 19 over Little Swan Creek?

The structure is 62 ft (18.9 m) long with a longest span of 59 ft (18 m) and a deck 28 ft wide.

Who owns FAS 450 - Ch 19 over Little Swan Creek?

It is owned by the Town or Township Highway Agency.