US Bridges

SR 548/GRANDVIEW over I-5

Fair

Whatcom County, Washington · JCT I-5 · Structure no. 0006857A0000000

Built
1962
63 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
263 ft
5 main spans
Daily traffic
8,734
2023 count
Owner
State
State Highway Agency

About this bridge

SR 548/GRANDVIEW over I-5 is a prestressed concrete stringer/multi-beam or girder carrying SR 548/GRANDVIEW over I-5 in Whatcom County, Washington. It was built in 1962, so it is 63 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 8,734 vehicles a day, roughly 6% of them trucks, projected to reach 12,593 by 2039. The structure is 263 ft (80.2 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSR 548/GRANDVIEW
CrossesI-5
LocationJCT I-5
RouteState Highway 548
CountyWhatcom County
StateWashington
Coordinates48.89183, -122.5974
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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length263 ft (80.2 m)
Longest span59 ft (18 m)
Deck width33 ft (10.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,734 (2023)
Projected traffic12,593 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$5 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 548/GRANDVIEW over I-5 built?

It was built in 1962, making it 63 years old in 2025.

What condition is SR 548/GRANDVIEW over I-5 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 June 2024.

How much traffic does SR 548/GRANDVIEW over I-5 carry?

About 8,734 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SR 548/GRANDVIEW over I-5?

The structure is 263 ft (80.2 m) long with a longest span of 59 ft (18 m) and a deck 33 ft wide.

Who owns SR 548/GRANDVIEW over I-5?

It is owned by the State Highway Agency.