US Bridges

Jackson Road over Coon Creek

Fair

McHenry County, Illinois · 0.2 MI W Burma RD · Structure no. 056313200000000

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
127 ft
3 main spans
Daily traffic
125
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Jackson Road over Coon Creek is a prestressed concrete box beam or girders - multiple carrying Jackson Road over Coon Creek in McHenry County, Illinois. It was built in 1980, so it is 45 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 125 vehicles a day, roughly 14% of them trucks, projected to reach 150 by 2046. The structure is 127 ft (38.7 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesJackson Road
CrossesCoon Creek
Location0.2 MI W Burma RD
RouteCounty Highway 0
CountyMcHenry County
StateIllinois
Coordinates42.21885, -88.69093
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating45 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length127 ft (38.7 m)
Longest span42 ft (12.8 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2021)
Projected traffic150 by 2046
Trucks14%
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

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 Jackson Road over Coon Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Jackson Road over Coon Creek 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 October 2024.

How much traffic does Jackson Road over Coon Creek carry?

About 125 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is Jackson Road over Coon Creek?

The structure is 127 ft (38.7 m) long with a longest span of 42 ft (12.8 m) and a deck 27 ft wide.

Who owns Jackson Road over Coon Creek?

It is owned by the Town or Township Highway Agency.