US Bridges

Big Hollow Road over Redhead Lake Channel

Fair

Lake County, Illinois · .6 M W of US-12 · Structure no. 049018600000000

Built
1999
26 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
13,200
2023 count
Owner
County
County Highway Agency

About this bridge

Big Hollow Road over Redhead Lake Channel is a concrete culvert carrying Big Hollow Road over Redhead Lake Channel in Lake County, Illinois. It was built in 1999, so it is 26 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 13,200 vehicles a day, roughly 2% of them trucks, projected to reach 13,837 by 2046. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesBig Hollow Road
CrossesRedhead Lake Channel
Location.6 M W of US-12
CountyLake County
StateIllinois
Coordinates42.3687, -88.18097
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length24 ft (7.3 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,200 (2023)
Projected traffic13,837 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Big Hollow Road over Redhead Lake Channel built?

It was built in 1999, making it 26 years old in 2025.

What condition is Big Hollow Road over Redhead Lake 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 March 2024.

How much traffic does Big Hollow Road over Redhead Lake Channel carry?

About 13,200 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Big Hollow Road over Redhead Lake Channel?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.6 m).

Who owns Big Hollow Road over Redhead Lake Channel?

It is owned by the County Highway Agency.