US Bridges

TR 150(GREENSWITCH over Spring Creek

FairPosted for load

Macon County, Illinois · 2 MI NE Forsyth · Structure no. 058500600000000

Built
1974
51 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
550
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 150(GREENSWITCH over Spring Creek is a concrete continuous culvert carrying TR 150(GREENSWITCH over Spring Creek in Macon County, Illinois. It was built in 1974, so it is 51 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. Its operating status is: posted for load restriction.

It carries about 550 vehicles a day, roughly 3% of them trucks, projected to reach 556 by 2046. The structure is 37 ft (11.3 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesTR 150(GREENSWITCH
CrossesSpring Creek
Location2 MI NE Forsyth
RouteCounty Highway 0
CountyMacon County
StateIllinois
Coordinates39.94743, -88.91827
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating38.6 US tons
Inventory rating22.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 15
Structure length37 ft (11.3 m)
Longest span18 ft (5.5 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2020)
Projected traffic556 by 2046
Trucks3%
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 150(GREENSWITCH over Spring Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is TR 150(GREENSWITCH over Spring Creek 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 March 2023.

How much traffic does TR 150(GREENSWITCH over Spring Creek carry?

About 550 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is TR 150(GREENSWITCH over Spring Creek?

The structure is 37 ft (11.3 m) long with a longest span of 18 ft (5.5 m) and a deck 28 ft wide.

Who owns TR 150(GREENSWITCH over Spring Creek?

It is owned by the Town or Township Highway Agency.