US Bridges

Ill 97 over Haw Creek Trib.

Good

Knox County, Illinois · 6.5 MI NW of Maquon · Structure no. 048009800000000

Built
2016
9 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
2,100
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 97 over Haw Creek Trib. is a prestressed concrete stringer/multi-beam or girder carrying Ill 97 over Haw Creek Trib. in Knox County, Illinois. It was built in 2016, so it is 9 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 2,100 vehicles a day, roughly 12% of them trucks, projected to reach 2,020 by 2046. The structure is 79 ft (24 m) long and 35 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesIll 97
CrossesHaw Creek Trib.
Location6.5 MI NW of Maquon
RouteState Highway 97
CountyKnox County
StateIllinois
Coordinates40.87789, -90.22968
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating55.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length79 ft (24 m)
Longest span75 ft (22.9 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2023)
Projected traffic2,020 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 Haw Creek Trib. built?

It was built in 2016, making it 9 years old in 2025.

What condition is Ill 97 over Haw Creek Trib. 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 October 2023.

How much traffic does Ill 97 over Haw Creek Trib. carry?

About 2,100 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 97 over Haw Creek Trib.?

The structure is 79 ft (24 m) long with a longest span of 75 ft (22.9 m) and a deck 35 ft wide.

Who owns Ill 97 over Haw Creek Trib.?

It is owned by the State Highway Agency.