US Bridges

TR 187 a over Drainage Ditch

Good

Douglas County, Illinois · 1.5 MI SW Hindsboro · Structure no. 021473900000000

Built
2006
19 years old
Condition
Good
inspected March 2022
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
50
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 187 a over Drainage Ditch is a concrete culvert carrying TR 187 a over Drainage Ditch in Douglas County, Illinois. It was built in 2006, so it is 19 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 4% of them trucks, projected to reach 51 by 2046. The structure is 28 ft (8.6 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR 187 a
CrossesDrainage Ditch
Location1.5 MI SW Hindsboro
RouteCounty Highway 0
CountyDouglas County
StateIllinois
Coordinates39.66663, -88.16562
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 inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.6 m)
Longest span12 ft (3.7 m)
Deck width30 ft (9.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic51 by 2046
Trucks4%
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 187 a over Drainage Ditch built?

It was built in 2006, making it 19 years old in 2025.

What condition is TR 187 a 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 March 2022.

How much traffic does TR 187 a over Drainage Ditch carry?

About 50 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is TR 187 a over Drainage Ditch?

The structure is 28 ft (8.6 m) long with a longest span of 12 ft (3.7 m) and a deck 30 ft wide.

Who owns TR 187 a over Drainage Ditch?

It is owned by the Town or Township Highway Agency.