US Bridges

TR 161 over Drainage Ditcth.

Good

Douglas County, Illinois · 3.4 MI NW Hindsboro · Structure no. 021474200000000

Built
2015
10 years old
Condition
Good
inspected July 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
125
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 161 over Drainage Ditcth. is a prestressed concrete box beam or girders - multiple carrying TR 161 over Drainage Ditcth. in Douglas County, Illinois. It was built in 2015, so it is 10 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 125 vehicles a day, roughly 6% of them trucks, projected to reach 126 by 2046. The structure is 81 ft (24.8 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR 161
CrossesDrainage Ditcth.
Location3.4 MI NW Hindsboro
RouteCounty Highway 0
Coordinates39.69541, -88.15693
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length81 ft (24.8 m)
Longest span80 ft (24.4 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 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 closed3.7 mi (6 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 Ditcth. built?

It was built in 2015, making it 10 years old in 2025.

What condition is TR 161 over Drainage Ditcth. in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2021.

How much traffic does TR 161 over Drainage Ditcth. carry?

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

How long is TR 161 over Drainage Ditcth.?

The structure is 81 ft (24.8 m) long with a longest span of 80 ft (24.4 m) and a deck 27 ft wide.

Who owns TR 161 over Drainage Ditcth.?

It is owned by the Town or Township Highway Agency.