US Bridges

Roeder Ave over Whatcom Creek/Waterway

Fair

Whatcom County, Washington · At JCT Central Ave · Structure no. 086181000000000

Built
1995
30 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
500 ft
5 main spans
Daily traffic
7,800
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Roeder Ave over Whatcom Creek/Waterway is a prestressed concrete continuous stringer/multi-beam or girder carrying Roeder Ave over Whatcom Creek/Waterway in Whatcom County, Washington. It was built in 1995, so it is 30 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 7,800 vehicles a day, roughly 5% of them trucks, projected to reach 10,200 by 2043. The structure is 500 ft (152.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRoeder Ave
CrossesWhatcom Creek/Waterway
LocationAt JCT Central Ave
RouteCity Street 86403
CountyWhatcom County
StateWashington
Coordinates48.75189, -122.48409
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5 (+1 approach)
Design loadHS 20
Structure length500 ft (152.4 m)
Longest span84 ft (25.6 m)
Deck width45 ft (13.8 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2021)
Projected traffic10,200 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$18.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Roeder Ave over Whatcom Creek/Waterway built?

It was built in 1995, making it 30 years old in 2025.

What condition is Roeder Ave over Whatcom Creek/Waterway 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 Roeder Ave over Whatcom Creek/Waterway carry?

About 7,800 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Roeder Ave over Whatcom Creek/Waterway?

The structure is 500 ft (152.4 m) long with a longest span of 84 ft (25.6 m) and a deck 45 ft wide.

Who owns Roeder Ave over Whatcom Creek/Waterway?

It is owned by the City or Municipal Highway Agency.