US Bridges

Edgewood Road over Rat Creek

Good

McHenry County, Illinois · 0.2 W Il 31 · Structure no. 056310100000000

Built
1954
71 years old, rebuilt 2012
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
4,750
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Edgewood Road over Rat Creek is a steel stringer/multi-beam or girder carrying Edgewood Road over Rat Creek in McHenry County, Illinois. It was built in 1954 and reconstructed in 2012, so it is 71 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,750 vehicles a day, roughly 3% of them trucks, projected to reach 5,700 by 2046. The structure is 32 ft (9.8 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesEdgewood Road
CrossesRat Creek
Location0.2 W Il 31
CountyMcHenry County
StateIllinois
Coordinates42.15779, -88.30096
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.5 US tons
Inventory rating49.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,750 (2021)
Projected traffic5,700 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$168,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Edgewood Road over Rat Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2012.

What condition is Edgewood Road over Rat Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Edgewood Road over Rat Creek carry?

About 4,750 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Edgewood Road over Rat Creek?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns Edgewood Road over Rat Creek?

It is owned by the City or Municipal Highway Agency.