US Bridges

CH-17 over Cypress Creek

Good

Union County, Illinois · 3/4 MI S Il 146 · Structure no. 091321000000000

Built
2002
23 years old
Condition
Good
inspected April 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
400
2020 count
Owner
County
County Highway Agency

About this bridge

CH-17 over Cypress Creek is a prestressed concrete box beam or girders - multiple carrying CH-17 over Cypress Creek in Union County, Illinois. It was built in 2002, so it is 23 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 400 vehicles a day, roughly 15% of them trucks, projected to reach 404 by 2046. The structure is 47 ft (14.3 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCH-17
CrossesCypress Creek
Location3/4 MI S Il 146
RouteCounty Highway 0
Coordinates37.43947, -89.14781
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
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 length47 ft (14.3 m)
Longest span46 ft (13.9 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2020)
Projected traffic404 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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-17 over Cypress Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is CH-17 over Cypress 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 April 2021.

How much traffic does CH-17 over Cypress Creek carry?

About 400 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is CH-17 over Cypress Creek?

The structure is 47 ft (14.3 m) long with a longest span of 46 ft (13.9 m) and a deck 30 ft wide.

Who owns CH-17 over Cypress Creek?

It is owned by the County Highway Agency.