US Bridges

Il 160 over Branch Lake Creek

Good

Clinton County, Illinois · 2.2 M S Trenton US50 · Structure no. 014007900000000

Built
2012
13 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
77 ft
1 main span
Daily traffic
4,750
2023 count
Owner
State
State Highway Agency

About this bridge

Il 160 over Branch Lake Creek is a steel stringer/multi-beam or girder carrying Il 160 over Branch Lake Creek in Clinton County, Illinois. It was built in 2012, so it is 13 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 4,750 vehicles a day, roughly 8% of them trucks, projected to reach 5,225 by 2046. The structure is 77 ft (23.5 m) long and 39 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesIl 160
CrossesBranch Lake Creek
Location2.2 M S Trenton US50
RouteState Highway 160
Coordinates38.57159, -89.68644
Functional classRural Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.3 US tons
Inventory rating61.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length77 ft (23.5 m)
Longest span74 ft (22.7 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,750 (2023)
Projected traffic5,225 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 Branch Lake Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Il 160 over Branch Lake 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 January 2025.

How much traffic does Il 160 over Branch Lake Creek carry?

About 4,750 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Il 160 over Branch Lake Creek?

The structure is 77 ft (23.5 m) long with a longest span of 74 ft (22.7 m) and a deck 39 ft wide.

Who owns Il 160 over Branch Lake Creek?

It is owned by the State Highway Agency.