US Bridges

TR 379 over The Bluff Canal

Fair

Hancock County, Illinois · 5.5 S Warsaw · Structure no. 034521500000000

Built
1986
39 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
104 ft
3 main spans
Daily traffic
125
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 379 over The Bluff Canal is a prestressed concrete box beam or girders - multiple carrying TR 379 over The Bluff Canal in Hancock 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 125 vehicles a day, projected to reach 126 by 2046. The structure is 104 ft (31.7 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesTR 379
CrossesThe Bluff Canal
Location5.5 S Warsaw
RouteCounty Highway 0
CountyHancock County
StateIllinois
Coordinates40.25482, -91.41968
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span38 ft (11.6 m)
Deck width26 ft (8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2023)
Projected traffic126 by 2046
Trucks0%
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

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 TR 379 over The Bluff Canal built?

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

What condition is TR 379 over The Bluff Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.

How much traffic does TR 379 over The Bluff Canal carry?

About 125 vehicles per day (2023 count).

How long is TR 379 over The Bluff Canal?

The structure is 104 ft (31.7 m) long with a longest span of 38 ft (11.6 m) and a deck 26 ft wide.

Who owns TR 379 over The Bluff Canal?

It is owned by the Town or Township Highway Agency.