US Bridges

Chicago Ave over Russell Creek

Good

Carter County, Montana · Ekalaka-Chicago Ave · Structure no. 000000202308070

Built
2019
6 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
480
2023 count
Owner
County
County Highway Agency

About this bridge

Chicago Ave over Russell Creek is a steel stringer/multi-beam or girder carrying Chicago Ave over Russell Creek in Carter County, Montana. It was built in 2019, so it is 6 years old, younger than the Montana average of 47 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 480 vehicles a day, roughly 2% of them trucks, projected to reach 504 by 2043. The structure is 40 ft (12.3 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesChicago Ave
CrossesRussell Creek
LocationEkalaka-Chicago Ave
RouteCity Street Urban
CountyCarter County
StateMontana
Coordinates45.89222, -104.54806
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span40 ft (12.3 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic480 (2023)
Projected traffic504 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Chicago Ave over Russell Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is Chicago Ave over Russell 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 April 2023.

How much traffic does Chicago Ave over Russell Creek carry?

About 480 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Chicago Ave over Russell Creek?

The structure is 40 ft (12.3 m) long with a longest span of 40 ft (12.3 m) and a deck 25 ft wide.

Who owns Chicago Ave over Russell Creek?

It is owned by the County Highway Agency.