US Bridges

Rocky Creek RD over Rocky Creek

Poor

Stevens County, Washington · .54 S JCT Aladdin Rd. · Structure no. 080750000000000

Built
1964
61 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
24 ft
1 main span
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

Rocky Creek RD over Rocky Creek is a wood or timber stringer/multi-beam or girder carrying Rocky Creek RD over Rocky Creek in Stevens County, Washington. It was built in 1964, so it is 61 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 40 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2037. The structure is 24 ft (7.3 m) long and 15 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesRocky Creek RD
CrossesRocky Creek
Location.54 S JCT Aladdin Rd.
RouteCounty Highway 46990
Coordinates48.72369, -117.66715
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating8 US tons
Inventory rating5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic60 by 2037
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$840,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rocky Creek RD over Rocky Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Rocky Creek RD over Rocky Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Rocky Creek RD over Rocky Creek carry?

About 40 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rocky Creek RD over Rocky Creek?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 15 ft wide.

Who owns Rocky Creek RD over Rocky Creek?

It is owned by the County Highway Agency.