US Bridges

Baylor RD over Mid Fk Porcupine CR 013

FairPosted for load

Valley County, Montana · 15M S Opheim · Structure no. L53212002+01001

Built
1960
65 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
93 ft
4 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Baylor RD over Mid Fk Porcupine CR 013 is a wood or timber stringer/multi-beam or girder carrying Baylor RD over Mid Fk Porcupine CR 013 in Valley County, Montana. It was built in 1960, so it is 65 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 93 ft (28.3 m) long and 24 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesBaylor RD
CrossesMid Fk Porcupine CR 013
Location15M S Opheim
RouteCounty Highway 53010
StateMontana
Coordinates48.66467, -106.43453
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22 US tons
Inventory rating15 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadUnknown
Structure length93 ft (28.3 m)
Longest span23 ft (7.1 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 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 closed24.2 mi (39 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 Baylor RD over Mid Fk Porcupine CR 013 built?

It was built in 1960, making it 65 years old in 2025.

What condition is Baylor RD over Mid Fk Porcupine CR 013 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 August 2024.

How much traffic does Baylor RD over Mid Fk Porcupine CR 013 carry?

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

How long is Baylor RD over Mid Fk Porcupine CR 013?

The structure is 93 ft (28.3 m) long with a longest span of 23 ft (7.1 m) and a deck 24 ft wide.

Who owns Baylor RD over Mid Fk Porcupine CR 013?

It is owned by the County Highway Agency.