US Bridges

CO RD 15 over Walbridge Creek

Poor

LaSalle County, Illinois · E 24th N 2885 · Structure no. 050340000000000

Built
1971
54 years old
Condition
Poor
inspected April 2023
Type
Channel Beam
Concrete
Length
34 ft
1 main span
Daily traffic
4,700
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

CO RD 15 over Walbridge Creek is a concrete channel beam carrying CO RD 15 over Walbridge Creek in LaSalle County, Illinois. It was built in 1971, so it is 54 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.

It carries about 4,700 vehicles a day, roughly 12% of them trucks, projected to reach 4,747 by 2046. The structure is 34 ft (10.4 m) long and 45 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesCO RD 15
CrossesWalbridge Creek
LocationE 24th N 2885
RouteCounty Highway 0
CountyLaSalle County
StateIllinois
Coordinates41.36642, -88.70598
Functional classRural Minor Arterial

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating34.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span31 ft (9.4 m)
Deck width45 ft (13.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2020)
Projected traffic4,747 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 RD 15 over Walbridge Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is CO RD 15 over Walbridge 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 April 2023.

How much traffic does CO RD 15 over Walbridge Creek carry?

About 4,700 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is CO RD 15 over Walbridge Creek?

The structure is 34 ft (10.4 m) long with a longest span of 31 ft (9.4 m) and a deck 45 ft wide.

Who owns CO RD 15 over Walbridge Creek?

It is owned by the City or Municipal Highway Agency.