US Bridges

CH21/OWL Branch RD over Owl Branch

Good

Jersey County, Illinois · .1 MI W FAS 745 · Structure no. 042313400000000

Built
2003
22 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
200
2022 count
Owner
County
County Highway Agency

About this bridge

CH21/OWL Branch RD over Owl Branch is a prestressed concrete box beam or girders - multiple carrying CH21/OWL Branch RD over Owl Branch in Jersey County, Illinois. It was built in 2003, so it is 22 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 23% of them trucks, projected to reach 101 by 2046. The structure is 56 ft (17.2 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCH21/OWL Branch RD
CrossesOwl Branch
Location.1 MI W FAS 745
RouteCounty Highway 0
Coordinates39.17405, -90.25829
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length56 ft (17.2 m)
Longest span55 ft (16.8 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic101 by 2046
Trucks23%
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

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 CH21/OWL Branch RD over Owl Branch built?

It was built in 2003, making it 22 years old in 2025.

What condition is CH21/OWL Branch RD over Owl Branch 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 March 2024.

How much traffic does CH21/OWL Branch RD over Owl Branch carry?

About 200 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is CH21/OWL Branch RD over Owl Branch?

The structure is 56 ft (17.2 m) long with a longest span of 55 ft (16.8 m) and a deck 24 ft wide.

Who owns CH21/OWL Branch RD over Owl Branch?

It is owned by the County Highway Agency.