US Bridges

Ill 1 (fap 332) over Mill Creek

Fair

Clark County, Illinois · N of West Union · Structure no. 012007100000000

Built
2005
20 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
166 ft
3 main spans
Daily traffic
2,400
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 1 (fap 332) over Mill Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Ill 1 (fap 332) over Mill Creek in Clark County, Illinois. It was built in 2005, so it is 20 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 6 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 2,400 vehicles a day, roughly 19% of them trucks, projected to reach 2,424 by 2046. The structure is 166 ft (50.6 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIll 1 (fap 332)
CrossesMill Creek
LocationN of West Union
RouteState Highway 1
Coordinates39.23404, -87.66747
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.9 US tons
Inventory rating54.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length166 ft (50.6 m)
Longest span63 ft (19.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2023)
Projected traffic2,424 by 2046
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 1 (fap 332) over Mill Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Ill 1 (fap 332) over Mill 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 September 2023.

How much traffic does Ill 1 (fap 332) over Mill Creek carry?

About 2,400 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is Ill 1 (fap 332) over Mill Creek?

The structure is 166 ft (50.6 m) long with a longest span of 63 ft (19.1 m) and a deck 35 ft wide.

Who owns Ill 1 (fap 332) over Mill Creek?

It is owned by the State Highway Agency.