US Bridges

Ashton RD / TR 106 over FAI 80

PoorPosted for load

Grundy County, Illinois · 2.21 MI W Ill 47 · Structure no. 032005600000000

Built
1958
67 years old
Condition
Poor
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
190 ft
4 main spans
Daily traffic
1,650
2024 count
Owner
State
State Highway Agency

About this bridge

Ashton RD / TR 106 over FAI 80 is a concrete continuous tee beam carrying Ashton RD / TR 106 over FAI 80 in Grundy County, Illinois. It was built in 1958, so it is 67 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,650 vehicles a day, roughly 5% of them trucks, projected to reach 1,820 by 2046. The structure is 190 ft (57.9 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesAshton RD / TR 106
CrossesFAI 80
Location2.21 MI W Ill 47
Coordinates41.37826, -88.46077
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45 US tons
Inventory rating27.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length190 ft (57.9 m)
Longest span56 ft (17 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,650 (2024)
Projected traffic1,820 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ashton RD / TR 106 over FAI 80 built?

It was built in 1958, making it 67 years old in 2025.

What condition is Ashton RD / TR 106 over FAI 80 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Ashton RD / TR 106 over FAI 80 carry?

About 1,650 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Ashton RD / TR 106 over FAI 80?

The structure is 190 ft (57.9 m) long with a longest span of 56 ft (17 m) and a deck 30 ft wide.

Who owns Ashton RD / TR 106 over FAI 80?

It is owned by the State Highway Agency.