US Bridges

TR 161 over Drainage Ditch

Good

Piatt County, Illinois · 2.5 MI SE Bement · Structure no. 074310500000000

Built
1960
65 years old
Condition
Good
inspected November 2023
Type
Channel Beam
Concrete
Length
113 ft
3 main spans
Daily traffic
50
2020 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 Piatt 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 51 by 2046. The structure is 113 ft (34.4 m) long and 23 ft wide.

CarriesTR 161
CrossesDrainage Ditch
Location2.5 MI SE Bement
RouteCounty Highway 0
Coordinates39.90815, -88.52277
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length113 ft (34.4 m)
Longest span40 ft (12.2 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic51 by 2046
Trucks0%
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 161 over Drainage Ditch built?

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

What condition is TR 161 over Drainage Ditch 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 November 2023.

How much traffic does TR 161 over Drainage Ditch carry?

About 50 vehicles per day (2020 count).

How long is TR 161 over Drainage Ditch?

The structure is 113 ft (34.4 m) long with a longest span of 40 ft (12.2 m) and a deck 23 ft wide.

Who owns TR 161 over Drainage Ditch?

It is owned by the Town or Township Highway Agency.