US Bridges

TR 159 over Drainage Ditch

Fair

Douglas County, Illinois · W Edge of Kemp · Structure no. 021471900000000

Built
1978
47 years old
Condition
Fair
inspected December 2023
Type
Channel Beam
Concrete
Length
66 ft
2 main spans
Daily traffic
75
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 159 over Drainage Ditch is a concrete channel beam carrying TR 159 over Drainage Ditch in Douglas County, Illinois. It was built in 1978, so it is 47 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 6 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 75 vehicles a day, roughly 17% of them trucks, projected to reach 101 by 2046. The structure is 66 ft (20.1 m) long and 26 ft wide.

Location

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CarriesTR 159
CrossesDrainage Ditch
LocationW Edge of Kemp
RouteCounty Highway 0
CountyDouglas County
StateIllinois
Coordinates39.69541, -88.19096
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.4 US tons
Inventory rating34 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span32 ft (9.8 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic101 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 159 over Drainage Ditch built?

It was built in 1978, making it 47 years old in 2025.

What condition is TR 159 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 December 2023.

How much traffic does TR 159 over Drainage Ditch carry?

About 75 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is TR 159 over Drainage Ditch?

The structure is 66 ft (20.1 m) long with a longest span of 32 ft (9.8 m) and a deck 26 ft wide.

Who owns TR 159 over Drainage Ditch?

It is owned by the Town or Township Highway Agency.