US Bridges

Sterling RD over Br of Green River

Good

Lee County, Illinois · .5 MI E. of Amboy · Structure no. 052405300000000

Built
1998
27 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
350
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Sterling RD over Br of Green River is a prestressed concrete box beam or girders - multiple carrying Sterling RD over Br of Green River in Lee County, Illinois. It was built in 1998, so it is 27 years old, younger 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 350 vehicles a day, roughly 36% of them trucks, projected to reach 354 by 2046. The structure is 38 ft (11.5 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSterling RD
CrossesBr of Green River
Location.5 MI E. of Amboy
RouteCounty Highway 0
Coordinates41.72202, -89.31321
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span35 ft (10.7 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2022)
Projected traffic354 by 2046
Trucks36%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Sterling RD over Br of Green River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Sterling RD over Br of Green River 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 January 2025.

How much traffic does Sterling RD over Br of Green River carry?

About 350 vehicles per day (2022 count), of which roughly 36% are trucks.

How long is Sterling RD over Br of Green River?

The structure is 38 ft (11.5 m) long with a longest span of 35 ft (10.7 m) and a deck 28 ft wide.

Who owns Sterling RD over Br of Green River?

It is owned by the Town or Township Highway Agency.