US Bridges

E Valley Center RD over Hyalite Creek

Fair

Gallatin County, Montana · 3M NW Bozeman · Structure no. S00235001+04761

Built
2011
14 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
44 ft
1 main span
Daily traffic
6,192
2023 count
Owner
County
County Highway Agency

About this bridge

E Valley Center RD over Hyalite Creek is a steel stringer/multi-beam or girder carrying E Valley Center RD over Hyalite Creek in Gallatin County, Montana. It was built in 2011, so it is 14 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,192 vehicles a day, roughly 2% of them trucks, projected to reach 7,276 by 2043. The structure is 44 ft (13.4 m) long and 51 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesE Valley Center RD
CrossesHyalite Creek
Location3M NW Bozeman
RouteCounty Highway 235
CountyGallatin County
StateMontana
Coordinates45.72926, -111.15483
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length44 ft (13.4 m)
Longest span43 ft (13 m)
Deck width51 ft (15.4 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,192 (2023)
Projected traffic7,276 by 2043
Trucks2%
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$39,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E Valley Center RD over Hyalite Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is E Valley Center RD over Hyalite Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does E Valley Center RD over Hyalite Creek carry?

About 6,192 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is E Valley Center RD over Hyalite Creek?

The structure is 44 ft (13.4 m) long with a longest span of 43 ft (13 m) and a deck 51 ft wide.

Who owns E Valley Center RD over Hyalite Creek?

It is owned by the County Highway Agency.