US Bridges

Park RD over Fifteen Mile Creek 020

Good

Blaine County, Montana · 1M N Zurich · Structure no. L03041001+02001

Built
1958
67 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
76 ft
3 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Park RD over Fifteen Mile Creek 020 is a wood or timber stringer/multi-beam or girder carrying Park RD over Fifteen Mile Creek 020 in Blaine County, Montana. It was built in 1958, so it is 67 years old, older 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 76 ft (23.2 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPark RD
CrossesFifteen Mile Creek 020
Location1M N Zurich
RouteCounty Highway 3027
StateMontana
Coordinates48.59821, -109.01934
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating31.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 15
Structure length76 ft (23.2 m)
Longest span25 ft (7.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 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 closed123.7 mi (199 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 Park RD over Fifteen Mile Creek 020 built?

It was built in 1958, making it 67 years old in 2025.

What condition is Park RD over Fifteen Mile Creek 020 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 March 2023.

How much traffic does Park RD over Fifteen Mile Creek 020 carry?

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

How long is Park RD over Fifteen Mile Creek 020?

The structure is 76 ft (23.2 m) long with a longest span of 25 ft (7.7 m) and a deck 30 ft wide.

Who owns Park RD over Fifteen Mile Creek 020?

It is owned by the County Highway Agency.