US Bridges

Cantrell Rd/ FAS 6 over I-72 / US 36

Poor

Sangamon County, Illinois · 1M W Illiopolis Int. · Structure no. 084016100000000

Built
1974
51 years old
Condition
Poor
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
246 ft
2 main spans
Daily traffic
150
2022 count
Owner
State
State Highway Agency

About this bridge

Cantrell Rd/ FAS 6 over I-72 / US 36 is a steel continuous box beam or girders - single or spread carrying Cantrell Rd/ FAS 6 over I-72 / US 36 in Sangamon 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 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.

It carries about 150 vehicles a day, roughly 7% of them trucks, projected to reach 177 by 2046. The structure is 246 ft (75 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesCantrell Rd/ FAS 6
CrossesI-72 / US 36
Location1M W Illiopolis Int.
RouteCounty Highway 0
CountySangamon County
StateIllinois
Coordinates39.83695, -89.27392
Functional classRural Local

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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating34 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length246 ft (75 m)
Longest span105 ft (32 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic177 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 Cantrell Rd/ FAS 6 over I-72 / US 36 built?

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

What condition is Cantrell Rd/ FAS 6 over I-72 / US 36 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 December 2024.

How much traffic does Cantrell Rd/ FAS 6 over I-72 / US 36 carry?

About 150 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Cantrell Rd/ FAS 6 over I-72 / US 36?

The structure is 246 ft (75 m) long with a longest span of 105 ft (32 m) and a deck 32 ft wide.

Who owns Cantrell Rd/ FAS 6 over I-72 / US 36?

It is owned by the State Highway Agency.