US Bridges

Ill 89 over Snag Creek

Fair

Woodford County, Illinois · 9.5 MI N of Ill 116 · Structure no. 102008200000000

Built
2009
16 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
81 ft
3 main spans
Daily traffic
3,150
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 89 over Snag Creek is a concrete continuous slab carrying Ill 89 over Snag Creek in Woodford County, Illinois. It was built in 2009, so it is 16 years old, younger 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,150 vehicles a day, roughly 13% of them trucks, projected to reach 2,778 by 2046. The structure is 81 ft (24.6 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesIll 89
CrossesSnag Creek
Location9.5 MI N of Ill 116
RouteState Highway 89
CountyWoodford County
StateIllinois
Coordinates40.91652, -89.29368
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.7 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length81 ft (24.6 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,150 (2023)
Projected traffic2,778 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 89 over Snag Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Ill 89 over Snag 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 August 2023.

How much traffic does Ill 89 over Snag Creek carry?

About 3,150 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Ill 89 over Snag Creek?

The structure is 81 ft (24.6 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns Ill 89 over Snag Creek?

It is owned by the State Highway Agency.