US Bridges

TR 177 over Drainage Ditch

Good

Piatt County, Illinois · 3.5 MI E Voorhies · Structure no. 074318200000000

Built
1981
44 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
55 ft
3 main spans
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 177 over Drainage Ditch is a concrete continuous slab carrying TR 177 over Drainage Ditch in Piatt County, Illinois. It was built in 1981, so it is 44 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 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 55 ft (16.8 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTR 177
CrossesDrainage Ditch
Location3.5 MI E Voorhies
RouteCounty Highway 0
CountyPiatt County
StateIllinois
Coordinates39.86468, -88.50797
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span20 ft (6.1 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 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 177 over Drainage Ditch built?

It was built in 1981, making it 44 years old in 2025.

What condition is TR 177 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 February 2023.

How much traffic does TR 177 over Drainage Ditch carry?

About 50 vehicles per day (2020 count).

How long is TR 177 over Drainage Ditch?

The structure is 55 ft (16.8 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns TR 177 over Drainage Ditch?

It is owned by the Town or Township Highway Agency.