US Bridges

Baker Lk RD over Rocky CR

Fair

Whatcom County, Washington · 0.52 N Skagit Line · Structure no. 084728000000000

Built
1956
69 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
180 ft
1 main span
Daily traffic
917
2023 count
Owner
County
County Highway Agency

About this bridge

Baker Lk RD over Rocky CR is a steel stringer/multi-beam or girder carrying Baker Lk RD over Rocky CR in Whatcom County, Washington. It was built in 1956, so it is 69 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 917 vehicles a day, roughly 7% of them trucks, projected to reach 1,200 by 2045. The structure is 180 ft (54.9 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesBaker Lk RD
CrossesRocky CR
Location0.52 N Skagit Line
RouteCounty Highway 87000
CountyWhatcom County
StateWashington
Coordinates48.64869, -121.72897
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
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 rating18.2 US tons
Inventory rating12.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic917 (2023)
Projected traffic1,200 by 2045
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$6.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Baker Lk RD over Rocky CR built?

It was built in 1956, making it 69 years old in 2025.

What condition is Baker Lk RD over Rocky CR 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 April 2023.

How much traffic does Baker Lk RD over Rocky CR carry?

About 917 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Baker Lk RD over Rocky CR?

The structure is 180 ft (54.9 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns Baker Lk RD over Rocky CR?

It is owned by the County Highway Agency.