US Bridges

Axtell Anceny RD over Gallatin River 084

PoorPosted for load

Gallatin County, Montana · 2M N Gallatin Gateway · Structure no. L16494000+05001

Built
1919
106 years old
Condition
Poor
inspected June 2024
Type
Truss - Thru
Steel
Length
142 ft
1 main span
Daily traffic
569
2023 count
Owner
County
County Highway Agency

About this bridge

Axtell Anceny RD over Gallatin River 084 is a steel truss - thru carrying Axtell Anceny RD over Gallatin River 084 in Gallatin County, Montana. It was built in 1919, so it is 106 years old, older than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 569 vehicles a day, projected to reach 609 by 2043. The structure is 142 ft (43.3 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesAxtell Anceny RD
CrossesGallatin River 084
Location2M N Gallatin Gateway
RouteCounty Highway 16494
StateMontana
Coordinates45.62313, -111.20534
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating26 US tons
Inventory rating19 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length142 ft (43.3 m)
Longest span140 ft (42.7 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deck11 ft (3.2 m)

Traffic and service

Average daily traffic569 (2023)
Projected traffic609 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$335,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Axtell Anceny RD over Gallatin River 084 built?

It was built in 1919, making it 106 years old in 2025.

What condition is Axtell Anceny RD over Gallatin River 084 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Axtell Anceny RD over Gallatin River 084 carry?

About 569 vehicles per day (2023 count).

How long is Axtell Anceny RD over Gallatin River 084?

The structure is 142 ft (43.3 m) long with a longest span of 140 ft (42.7 m) and a deck 16 ft wide.

Who owns Axtell Anceny RD over Gallatin River 084?

It is owned by the County Highway Agency.