US Bridges

Ill 97 over Pecan Run Creek

Good

Mason County, Illinois · 1.2MI So Kilbourne · Structure no. 063000900000000

Built
1986
39 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
260 ft
3 main spans
Daily traffic
1,600
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 97 over Pecan Run Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Ill 97 over Pecan Run Creek in Mason County, Illinois. It was built in 1986, so it is 39 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,600 vehicles a day, roughly 14% of them trucks, projected to reach 1,616 by 2046. The structure is 260 ft (79.2 m) long and 35 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesIll 97
CrossesPecan Run Creek
Location1.2MI So Kilbourne
RouteState Highway 97
Coordinates40.13273, -89.99462
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.5 US tons
Inventory rating22.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length260 ft (79.2 m)
Longest span87 ft (26.4 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic1,616 by 2046
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ill 97 over Pecan Run Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Ill 97 over Pecan Run Creek 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 February 2025.

How much traffic does Ill 97 over Pecan Run Creek carry?

About 1,600 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is Ill 97 over Pecan Run Creek?

The structure is 260 ft (79.2 m) long with a longest span of 87 ft (26.4 m) and a deck 35 ft wide.

Who owns Ill 97 over Pecan Run Creek?

It is owned by the State Highway Agency.