US Bridges

Lathrop Ave. over Cal-Union Dr.Ditch

Fair

Cook County, Illinois · 0.3MI S.Ofus 6 P.24 · Structure no. 016711700000000

Built
1986
39 years old
Condition
Fair
inspected November 2022
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
1,100
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lathrop Ave. over Cal-Union Dr.Ditch is a concrete culvert carrying Lathrop Ave. over Cal-Union Dr.Ditch in Cook County, Illinois. It was built in 1986, so it is 39 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 1,100 vehicles a day, roughly 9% of them trucks, projected to reach 1,364 by 2046. The structure is 35 ft (10.7 m) long and 34 ft wide.

Location

Open in Google Maps
CarriesLathrop Ave.
CrossesCal-Union Dr.Ditch
Location0.3MI S.Ofus 6 P.24
RouteCity Street 0
CountyCook County
StateIllinois
Coordinates41.59687, -87.64129
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span10 ft (3 m)
Deck width34 ft (10.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic1,364 by 2046
Trucks9%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lathrop Ave. over Cal-Union Dr.Ditch built?

It was built in 1986, making it 39 years old in 2025.

What condition is Lathrop Ave. over Cal-Union Dr.Ditch 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 November 2022.

How much traffic does Lathrop Ave. over Cal-Union Dr.Ditch carry?

About 1,100 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Lathrop Ave. over Cal-Union Dr.Ditch?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns Lathrop Ave. over Cal-Union Dr.Ditch?

It is owned by the City or Municipal Highway Agency.