US Bridges

TR 161 over Drainage Ditch

Fair

Douglas County, Illinois · 0.8 MI NW Hindsboro · Structure no. 021472600000000

Built
1984
41 years old
Condition
Fair
inspected February 2024
Type
Channel Beam
Concrete
Length
34 ft
1 main span
Daily traffic
125
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 161 over Drainage Ditch is a concrete channel beam carrying TR 161 over Drainage Ditch in Douglas County, Illinois. It was built in 1984, so it is 41 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, roughly 6% of them trucks, projected to reach 126 by 2046. The structure is 34 ft (10.4 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR 161
CrossesDrainage Ditch
Location0.8 MI NW Hindsboro
RouteCounty Highway 0
CountyDouglas County
StateIllinois
Coordinates39.69548, -88.14475
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width26 ft (8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2022)
Projected traffic126 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 161 over Drainage Ditch built?

It was built in 1984, making it 41 years old in 2025.

What condition is TR 161 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 February 2024.

How much traffic does TR 161 over Drainage Ditch carry?

About 125 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is TR 161 over Drainage Ditch?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.

Who owns TR 161 over Drainage Ditch?

It is owned by the Town or Township Highway Agency.