US Bridges

Ch 12 over Bluff Canal

Good

Hancock County, Illinois · 9.0 MI S Warsaw · Structure no. 034312700000000

Built
1999
26 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
262 ft
3 main spans
Daily traffic
350
2018 count
Owner
County
County Highway Agency

About this bridge

Ch 12 over Bluff Canal is a prestressed concrete continuous stringer/multi-beam or girder carrying Ch 12 over Bluff Canal in Hancock County, Illinois. It was built in 1999, so it is 26 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 350 vehicles a day, roughly 9% of them trucks, projected to reach 354 by 2046. The structure is 262 ft (79.8 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCh 12
CrossesBluff Canal
Location9.0 MI S Warsaw
RouteCounty Highway 0
Coordinates40.20344, -91.41776
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating42.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length262 ft (79.8 m)
Longest span115 ft (35.1 m)
Deck width35 ft (10.7 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2018)
Projected traffic354 by 2046
Trucks9%
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 Ch 12 over Bluff Canal built?

It was built in 1999, making it 26 years old in 2025.

What condition is Ch 12 over Bluff Canal 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 February 2025.

How much traffic does Ch 12 over Bluff Canal carry?

About 350 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Ch 12 over Bluff Canal?

The structure is 262 ft (79.8 m) long with a longest span of 115 ft (35.1 m) and a deck 35 ft wide.

Who owns Ch 12 over Bluff Canal?

It is owned by the County Highway Agency.