US Bridges

Washington ST over Gum Creek

PoorPosted for load

LaSalle County, Illinois · Wash ST Ov Gum CR · Structure no. 050690700000000

Built
1920
105 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
2 main spans
Daily traffic
175
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Washington ST over Gum Creek is a steel stringer/multi-beam or girder carrying Washington ST over Gum Creek in LaSalle County, Illinois. It was built in 1920, so it is 105 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 4 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 175 vehicles a day, roughly 15% of them trucks, projected to reach 177 by 2046. The structure is 31 ft (9.4 m) long and 39 ft wide.

CarriesWashington ST
CrossesGum Creek
LocationWash ST Ov Gum CR
RouteCity Street 0
Coordinates41.32669, -88.6955
Functional classRural Local

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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating26.5 US tons
Inventory rating15.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span19 ft (5.8 m)
Deck width39 ft (11.9 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2020)
Projected traffic177 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$192,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Washington ST over Gum Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is Washington ST over Gum 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 May 2024.

How much traffic does Washington ST over Gum Creek carry?

About 175 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Washington ST over Gum Creek?

The structure is 31 ft (9.4 m) long with a longest span of 19 ft (5.8 m) and a deck 39 ft wide.

Who owns Washington ST over Gum Creek?

It is owned by the City or Municipal Highway Agency.