US Bridges

Ch 5 Inlet RD over Green River

Good

Lee County, Illinois · 5.0 MI NE Amboy · Structure no. 052321000000000

Built
1961
64 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
87 ft
1 main span
Daily traffic
400
2022 count
Owner
County
County Highway Agency

About this bridge

Ch 5 Inlet RD over Green River is a steel stringer/multi-beam or girder carrying Ch 5 Inlet RD over Green River in Lee County, Illinois. It was built in 1961, so it is 64 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 400 vehicles a day, roughly 10% of them trucks, projected to reach 505 by 2046. The structure is 87 ft (26.5 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCh 5 Inlet RD
CrossesGreen River
Location5.0 MI NE Amboy
RouteCounty Highway 0
Coordinates41.7367, -89.24043
Functional classRural Major 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.8 US tons
Inventory rating24.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length87 ft (26.5 m)
Longest span83 ft (25.3 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic505 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Ch 5 Inlet RD over Green River built?

It was built in 1961, making it 64 years old in 2025.

What condition is Ch 5 Inlet RD over 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 2024.

How much traffic does Ch 5 Inlet RD over Green River carry?

About 400 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ch 5 Inlet RD over Green River?

The structure is 87 ft (26.5 m) long with a longest span of 83 ft (25.3 m) and a deck 29 ft wide.

Who owns Ch 5 Inlet RD over Green River?

It is owned by the County Highway Agency.