US Bridges

Ch 19 over Little Swan Creek

Good

Warren County, Illinois · SE-17-T8NR1W · Structure no. 094303000000000

Built
1990
35 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
475
2021 count
Owner
County
County Highway Agency

About this bridge

Ch 19 over Little Swan Creek is a prestressed concrete box beam or girders - multiple carrying Ch 19 over Little Swan Creek in Warren County, Illinois. It was built in 1990, so it is 35 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 475 vehicles a day, roughly 12% of them trucks, projected to reach 480 by 2046. The structure is 70 ft (21.2 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCh 19
CrossesLittle Swan Creek
LocationSE-17-T8NR1W
RouteCounty Highway 0
Coordinates40.67317, -90.52391
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating41.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length70 ft (21.2 m)
Longest span67 ft (20.4 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (2021)
Projected traffic480 by 2046
Trucks12%
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

OwnerCounty Highway Agency
Maintained byCounty 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 Ch 19 over Little Swan Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is 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 Ch 19 over Little Swan Creek carry?

About 475 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Ch 19 over Little Swan Creek?

The structure is 70 ft (21.2 m) long with a longest span of 67 ft (20.4 m) and a deck 30 ft wide.

Who owns Ch 19 over Little Swan Creek?

It is owned by the County Highway Agency.