US Bridges

Shaw Road over Br. of Green River

Fair

Lee County, Illinois · 5.0 MI E of Amboy · Structure no. 052304100000000

Built
1955
70 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
650
2022 count
Owner
County
County Highway Agency

About this bridge

Shaw Road over Br. of Green River is a concrete slab carrying Shaw Road over Br. of Green River in Lee County, Illinois. It was built in 1955, so it is 70 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 650 vehicles a day, roughly 17% of them trucks, projected to reach 808 by 2046. The structure is 28 ft (8.5 m) long and 28 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesShaw Road
CrossesBr. of Green River
Location5.0 MI E of Amboy
RouteCounty Highway 0
CountyLee County
StateIllinois
Coordinates41.70753, -89.23702
Functional classRural Major 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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
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 rating56.1 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2022)
Projected traffic808 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 Shaw Road over Br. of Green River built?

It was built in 1955, making it 70 years old in 2025.

What condition is Shaw Road over Br. of Green River 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 January 2025.

How much traffic does Shaw Road over Br. of Green River carry?

About 650 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Shaw Road over Br. of Green River?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 28 ft wide.

Who owns Shaw Road over Br. of Green River?

It is owned by the County Highway Agency.