US Bridges

Grand Ave over Boat Channel

Fair

Lake County, Illinois · 0.5 M E of US 12 · Structure no. 049009100000000

Built
1926
99 years old, rebuilt 1985
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
65 ft
3 main spans
Daily traffic
5,750
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Grand Ave over Boat Channel is a concrete slab carrying Grand Ave over Boat Channel in Lake County, Illinois. It was built in 1926 and reconstructed in 1985, so it is 99 years old, older 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 5 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 5,750 vehicles a day, roughly 5% of them trucks, projected to reach 5,858 by 2046. The structure is 65 ft (19.8 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGrand Ave
CrossesBoat Channel
Location0.5 M E of US 12
CountyLake County
StateIllinois
Coordinates42.39645, -88.1753
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating68.6 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span22 ft (6.8 m)
Deck width44 ft (13.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,750 (2023)
Projected traffic5,858 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Grand Ave over Boat Channel built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1985.

What condition is Grand Ave over Boat Channel 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 July 2023.

How much traffic does Grand Ave over Boat Channel carry?

About 5,750 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Grand Ave over Boat Channel?

The structure is 65 ft (19.8 m) long with a longest span of 22 ft (6.8 m) and a deck 44 ft wide.

Who owns Grand Ave over Boat Channel?

It is owned by the City or Municipal Highway Agency.