US Bridges

Gooch Hill Road over Hyalite Creek 050

Good

Gallatin County, Montana · 5M S Bozeman · Structure no. L16725005+00001

Built
2016
9 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Gooch Hill Road over Hyalite Creek 050 is a steel stringer/multi-beam or girder carrying Gooch Hill Road over Hyalite Creek 050 in Gallatin County, Montana. It was built in 2016, so it is 9 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 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 40 ft (12.2 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesGooch Hill Road
CrossesHyalite Creek 050
Location5M S Bozeman
RouteCounty Highway 16725
StateMontana
Coordinates45.63645, -111.13101
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 inspectionJune 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span39 ft (12 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$62,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Gooch Hill Road over Hyalite Creek 050 built?

It was built in 2016, making it 9 years old in 2025.

What condition is Gooch Hill Road over Hyalite Creek 050 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 June 2023.

How much traffic does Gooch Hill Road over Hyalite Creek 050 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Gooch Hill Road over Hyalite Creek 050?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (12 m) and a deck 25 ft wide.

Who owns Gooch Hill Road over Hyalite Creek 050?

It is owned by the County Highway Agency.