US Bridges

TR 171 over Stream

Fair

De Witt County, Illinois · 1 MI SE Midland City · Structure no. 020501800000000

Built
1975
50 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
37 ft
2 main spans
Daily traffic
75
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 171 over Stream is a concrete culvert carrying TR 171 over Stream in De Witt County, Illinois. It was built in 1975, so it is 50 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 75 vehicles a day, roughly 3% of them trucks, projected to reach 76 by 2046. The structure is 37 ft (11.2 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 171
CrossesStream
Location1 MI SE Midland City
RouteCounty Highway 0
CountyDe Witt County
StateIllinois
Coordinates40.1367, -89.12229
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.5 US tons
Inventory rating31.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 15
Structure length37 ft (11.2 m)
Longest span17 ft (5.2 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic76 by 2046
Trucks3%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$68,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 171 over Stream built?

It was built in 1975, making it 50 years old in 2025.

What condition is TR 171 over Stream in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does TR 171 over Stream carry?

About 75 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is TR 171 over Stream?

The structure is 37 ft (11.2 m) long with a longest span of 17 ft (5.2 m) and a deck 25 ft wide.

Who owns TR 171 over Stream?

It is owned by the Town or Township Highway Agency.