US Bridges

Il 160 over Plum Creek Branch

Good

Washington County, Illinois · 1.6MI W Addieville · Structure no. 095007800000000

Built
2009
16 years old
Condition
Good
inspected January 2025
Type
Frame
Concrete
Length
30 ft
1 main span
Daily traffic
950
2023 count
Owner
State
State Highway Agency

About this bridge

Il 160 over Plum Creek Branch is a concrete frame carrying Il 160 over Plum Creek Branch in Washington County, Illinois. It was built in 2009, so it is 16 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 950 vehicles a day, roughly 9% of them trucks, projected to reach 1,210 by 2046. The structure is 30 ft (9.1 m) long and 35 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesIl 160
CrossesPlum Creek Branch
Location1.6MI W Addieville
RouteState Highway 160
CountyWashington County
StateIllinois
Coordinates38.40682, -89.51795
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
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2023)
Projected traffic1,210 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Il 160 over Plum Creek Branch built?

It was built in 2009, making it 16 years old in 2025.

What condition is Il 160 over Plum Creek Branch 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 Il 160 over Plum Creek Branch carry?

About 950 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Il 160 over Plum Creek Branch?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 35 ft wide.

Who owns Il 160 over Plum Creek Branch?

It is owned by the State Highway Agency.