US Bridges

3rd ST over Mendota CR

Good

LaSalle County, Illinois · S Edge Mendota · Structure no. 050701500000000

Built
2006
19 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
38 ft
2 main spans
Daily traffic
375
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

3rd ST over Mendota CR is a concrete culvert carrying 3rd ST over Mendota CR in LaSalle County, Illinois. It was built in 2006, so it is 19 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 375 vehicles a day, roughly 6% of them trucks, projected to reach 379 by 2046. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Carries3rd ST
CrossesMendota CR
LocationS Edge Mendota
RouteCity Street 0
Coordinates41.54394, -89.1241
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span18 ft (5.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2020)
Projected traffic379 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 3rd ST over Mendota CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is 3rd ST over Mendota CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does 3rd ST over Mendota CR carry?

About 375 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is 3rd ST over Mendota CR?

The structure is 38 ft (11.5 m) long with a longest span of 18 ft (5.4 m).

Who owns 3rd ST over Mendota CR?

It is owned by the City or Municipal Highway Agency.