US Bridges

TR 8B over Drainage Ditch

FairPosted for load

Tazewell County, Illinois · N.CTR-16-T23NR7W · Structure no. 090990000000000

Built
1960
65 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
60 ft
2 main spans
Daily traffic
50
2023 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

TR 8B over Drainage Ditch is a concrete slab carrying TR 8B over Drainage Ditch in Tazewell County, Illinois. It was built in 1960, so it is 65 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 50 vehicles a day, projected to reach 51 by 2046. The structure is 60 ft (18.3 m) long and 15 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesTR 8B
CrossesDrainage Ditch
LocationN.CTR-16-T23NR7W
RouteCounty Highway 0
CountyTazewell County
StateIllinois
Coordinates40.44926, -89.89667
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span29 ft (8.8 m)
Deck width15 ft (4.6 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic51 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$179,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 8B over Drainage Ditch built?

It was built in 1960, making it 65 years old in 2025.

What condition is TR 8B over Drainage Ditch 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 October 2023.

How much traffic does TR 8B over Drainage Ditch carry?

About 50 vehicles per day (2023 count).

How long is TR 8B over Drainage Ditch?

The structure is 60 ft (18.3 m) long with a longest span of 29 ft (8.8 m) and a deck 15 ft wide.

Who owns TR 8B over Drainage Ditch?

It is owned by the State Park, Forest, or Reservation Agency.