US Bridges

Woburn Street over Whatcom Creek

Fair

Whatcom County, Washington · 0.1 Mi. S. Iowa St. · Structure no. 085825000000000

Built
1989
36 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
11,900
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Woburn Street over Whatcom Creek is a prestressed concrete tee beam carrying Woburn Street over Whatcom Creek in Whatcom County, Washington. It was built in 1989, so it is 36 years old, younger 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 11,900 vehicles a day, roughly 5% of them trucks, projected to reach 16,000 by 2043. The structure is 66 ft (20.1 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWoburn Street
CrossesWhatcom Creek
Location0.1 Mi. S. Iowa St.
RouteCity Street 90306
Coordinates48.75586, -122.44472
Functional classUrban Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span61 ft (18.6 m)
Deck width40 ft (12.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,900 (2021)
Projected traffic16,000 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Woburn Street over Whatcom Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Woburn Street over Whatcom 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 May 2023.

How much traffic does Woburn Street over Whatcom Creek carry?

About 11,900 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Woburn Street over Whatcom Creek?

The structure is 66 ft (20.1 m) long with a longest span of 61 ft (18.6 m) and a deck 40 ft wide.

Who owns Woburn Street over Whatcom Creek?

It is owned by the City or Municipal Highway Agency.