US Bridges

Mt Constitution RD over Paul Creek

Fair

San Juan County, Washington · 0.75M East of Olga Road · Structure no. 086473000000000

Built
1929
96 years old
Condition
Fair
inspected September 2024
Type
Arch - Deck
Concrete
Length
70 ft
1 main span
Daily traffic
30
2014 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Mt Constitution RD over Paul Creek is a concrete arch - deck carrying Mt Constitution RD over Paul Creek in San Juan County, Washington. It was built in 1929, so it is 96 years old, older than the Washington average of 49.8 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 30 vehicles a day, projected to reach 39 by 2034. The structure is 70 ft (21.3 m) long and 19 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesMt Constitution RD
CrossesPaul Creek
Location0.75M East of Olga Road
RouteState Lands Road 54500
CountySan Juan County
StateWashington
Coordinates48.65025, -122.826
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating28 US tons
Inventory rating17 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length70 ft (21.3 m)
Longest span69 ft (21 m)
Deck width19 ft (5.8 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2014)
Projected traffic39 by 2034
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$732,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mt Constitution RD over Paul Creek built?

It was built in 1929, making it 96 years old in 2025.

What condition is Mt Constitution RD over Paul 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 September 2024.

How much traffic does Mt Constitution RD over Paul Creek carry?

About 30 vehicles per day (2014 count).

How long is Mt Constitution RD over Paul Creek?

The structure is 70 ft (21.3 m) long with a longest span of 69 ft (21 m) and a deck 19 ft wide.

Who owns Mt Constitution RD over Paul Creek?

It is owned by the State Park, Forest, or Reservation Agency.