US Bridges

TR 173 over Drainage Ditch

Good

Wabash County, Illinois · 1.5 Mi. S Keensburg · Structure no. 093500600000000

Built
2020
5 years old
Condition
Good
inspected December 2022
Type
Culvert
Concrete
Length
61 ft
1 main span
Daily traffic
50
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 173 over Drainage Ditch is a concrete culvert carrying TR 173 over Drainage Ditch in Wabash County, Illinois. It was built in 2020, so it is 5 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 50 vehicles a day, roughly 6% of them trucks, projected to reach 76 by 2046. The structure is 61 ft (18.5 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 173
CrossesDrainage Ditch
Location1.5 Mi. S Keensburg
RouteCounty Highway 0
Coordinates38.32782, -87.864
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating81.8 US tons
Inventory rating62.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length61 ft (18.5 m)
Longest span31 ft (9.6 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic76 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 173 over Drainage Ditch built?

It was built in 2020, making it 5 years old in 2025.

What condition is TR 173 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 December 2022.

How much traffic does TR 173 over Drainage Ditch carry?

About 50 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is TR 173 over Drainage Ditch?

The structure is 61 ft (18.5 m) long with a longest span of 31 ft (9.6 m) and a deck 32 ft wide.

Who owns TR 173 over Drainage Ditch?

It is owned by the Town or Township Highway Agency.