US Bridges

Oak Grove Road over Stream

FairPosted for load

McHenry County, Illinois · 0.5 MI SW Lawrence R · Structure no. 056305400000000

Built
1953
72 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
45 ft
2 main spans
Daily traffic
575
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Oak Grove Road over Stream is a concrete continuous slab carrying Oak Grove Road over Stream in McHenry County, Illinois. It was built in 1953, so it is 72 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 575 vehicles a day, roughly 6% of them trucks, projected to reach 690 by 2046. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesOak Grove Road
CrossesStream
Location0.5 MI SW Lawrence R
RouteCounty Highway 0
CountyMcHenry County
StateIllinois
Coordinates42.43493, -88.65235
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 rating38.6 US tons
Inventory rating22.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length45 ft (13.7 m)
Longest span22 ft (6.6 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic575 (2021)
Projected traffic690 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Oak Grove Road over Stream built?

It was built in 1953, making it 72 years old in 2025.

What condition is Oak Grove Road over Stream 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 September 2024.

How much traffic does Oak Grove Road over Stream carry?

About 575 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Oak Grove Road over Stream?

The structure is 45 ft (13.7 m) long with a longest span of 22 ft (6.6 m) and a deck 28 ft wide.

Who owns Oak Grove Road over Stream?

It is owned by the Town or Township Highway Agency.