US Bridges

TR 399 over The Bluff Canal

FairPosted for load

Hancock County, Illinois · 6.5 S Warsaw · Structure no. 034521800000000

Built
1906
119 years old
Condition
Fair
inspected March 2023
Type
Truss - Thru
Steel
Length
88 ft
1 main span
Daily traffic
75
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 399 over The Bluff Canal is a steel truss - thru carrying TR 399 over The Bluff Canal in Hancock County, Illinois. It was built in 1906, so it is 119 years old, older 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. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, projected to reach 76 by 2046. The structure is 88 ft (26.8 m) long and 14 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesTR 399
CrossesThe Bluff Canal
Location6.5 S Warsaw
RouteCounty Highway 0
CountyHancock County
StateIllinois
Coordinates40.23623, -91.41754
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating10.4 US tons
Inventory rating6.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadUnknown
Structure length88 ft (26.8 m)
Longest span60 ft (18.3 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic76 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 399 over The Bluff Canal built?

It was built in 1906, making it 119 years old in 2025.

What condition is TR 399 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 March 2023.

How much traffic does TR 399 over The Bluff Canal carry?

About 75 vehicles per day (2023 count).

How long is TR 399 over The Bluff Canal?

The structure is 88 ft (26.8 m) long with a longest span of 60 ft (18.3 m) and a deck 14 ft wide.

Who owns TR 399 over The Bluff Canal?

It is owned by the Town or Township Highway Agency.