US Bridges

CO HWY 1 over White Walnut Creek

PoorPosted for load

Perry County, Illinois · 1.7 MI N Ill 154 · Structure no. 073301500000000

Built
1959
66 years old
Condition
Poor
inspected January 2024
Type
Slab
Concrete
Length
65 ft
3 main spans
Daily traffic
675
2024 count
Owner
County
County Highway Agency

About this bridge

CO HWY 1 over White Walnut Creek is a concrete slab carrying CO HWY 1 over White Walnut Creek in Perry County, Illinois. It was built in 1959, so it is 66 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 3 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. Its operating status is: posted for load restriction.

It carries about 675 vehicles a day, roughly 5% of them trucks, projected to reach 606 by 2046. The structure is 65 ft (19.8 m) long and 26 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesCO HWY 1
CrossesWhite Walnut Creek
Location1.7 MI N Ill 154
CountyPerry County
StateIllinois
Coordinates38.10754, -89.34774
Functional classRural Major Collector

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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating18.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length65 ft (19.8 m)
Longest span24 ft (7.3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic675 (2024)
Projected traffic606 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CO HWY 1 over White Walnut Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is CO HWY 1 over White Walnut Creek 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 January 2024.

How much traffic does CO HWY 1 over White Walnut Creek carry?

About 675 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is CO HWY 1 over White Walnut Creek?

The structure is 65 ft (19.8 m) long with a longest span of 24 ft (7.3 m) and a deck 26 ft wide.

Who owns CO HWY 1 over White Walnut Creek?

It is owned by the County Highway Agency.