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Infrastructure

I-405, SR 4 closures scheduled for Spokane Valley

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I-405 southbound will close overnight from milepost 12 to Coal Creek Parkway Southeast from 9 p.m. Thursday, Sept. 3 to 5 a.m. Friday, Sept. 4, per WSDOT records.

State Route 4 will have a single lane closed weekdays from 7:30 a.m. to 5 p.m. between 50th Avenue and 42nd Avenue through Sept. 11 for gas main work. The right lane on SR 4 westbound near 42nd Avenue will also close starting Aug. 29 for utility work.

WSDOT notes that traffic will be reduced to a single lane on I-5 near Alger/Lake Samish Road nightly from 8 p.m. to 5 a.m. through Sept. 4 for fish passage construction.

πŸ“„ Source: WSDOT β€” Highway Construction & Closures β€” https://wsdot.wa.gov/travel/road-construction
Source receipts12 of 13 claims supported Β· 92%

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  • βœ“
    I-405 southbound will close overnight from milepost 12 to Coal Creek Parkway Southeastβ€œ405: Up to two lanes of southbound I-405 from milepost 12 to Coal Creek Parkway Southeast (milepost 10) will be closed overnight, 9 p.m. Thursday, Sept. 3 – 5 a.m. Friday, Sept. 4.”
  • βœ“
    The closure of I-405 southbound will start at 9 p.m. Thursday, Sept. 3β€œ405: Up to two lanes of southbound I-405 from milepost 12 to Coal Creek Parkway Southeast (milepost 10) will be closed overnight, 9 p.m. Thursday, Sept. 3 – 5 a.m. Friday, Sept. 4.”
  • βœ“
    The closure of I-405 southbound will end at 5 a.m. Friday, Sept. 4β€œ405: Up to two lanes of southbound I-405 from milepost 12 to Coal Creek Parkway Southeast (milepost 10) will be closed overnight, 9 p.m. Thursday, Sept. 3 – 5 a.m. Friday, Sept. 4.”
  • βœ“
    State Route 4 will have a single lane closed weekdays from 7:30 a.m. to 5 p.m.β€œ004: Monday, Aug. 17 through Friday, Sept. 11: A single lane in both directions of SR 4 between 50th Avenue (milepost 56.4) and 42nd Avenue (milepost 57.2) will be closed weekdays from 7:30 a.m. to 5 p.m., for buried gas main line extension work.”
  • βœ“
    The single lane closure on State Route 4 will be between 50th Avenue and 42nd Avenueβ€œ004: Monday, Aug. 17 through Friday, Sept. 11: A single lane in both directions of SR 4 between 50th Avenue (milepost 56.4) and 42nd Avenue (milepost 57.2) will be closed weekdays from 7:30 a.m. to 5 p.m., for buried gas main line extension work.”
  • βœ“
    The single lane closure on State Route 4 will last through Sept. 11β€œ004: Monday, Aug. 17 through Friday, Sept. 11: A single lane in both directions of SR 4 between 50th Avenue (milepost 56.4) and 42nd Avenue (milepost 57.2) will be closed weekdays from 7:30 a.m. to 5 p.m., for buried gas main line extension work.”
  • ⚠
    The right lane on SR 4 westbound near 42nd Avenue will also closeNo usable supporting receipt β€” unverified.
  • βœ“
    The closure of the right lane on SR 4 westbound near 42nd Avenue will start on Aug. 29β€œ004: Construction on SR 4 westbound from milepost 57.5 near 42nd Avenue to milepost 57 near 44th Avenue will have the right lane closed for underground utility work, use caution beginning at 7:50 am on August 29, 2026 until further notice.”
  • βœ“
    The closure of the right lane on SR 4 westbound near 42nd Avenue is for utility workβ€œConstruction on SR 4 westbound from milepost 57.5 near 42nd Avenue to milepost 57 near 44th Avenue will have the right lane closed for underground utility work, use caution beginning at 7:50 am on August 29, 2026 until further notice.”
  • βœ“
    Traffic will be reduced to a single lane on I-5 near Alger/Lake Samish Road nightlyβ€œ005: The northbound and southbound I-5 will be reduced to a single lane from 8 p.m. to 5 a.m. nightly Monday, Aug. 31, through Friday morning, Sept. 4, near Alger/Lake Samish Road (exit 240) for fish passage construction.”
  • βœ“
    The single lane reduction on I-5 near Alger/Lake Samish Road will occur from 8 p.m. to 5 a.m.β€œ005: The northbound and southbound I-5 will be reduced to a single lane from 8 p.m. to 5 a.m. nightly Monday, Aug. 31, through Friday morning, Sept. 4, near Alger/Lake Samish Road (exit 240) for fish passage construction.”
  • βœ“
    The single lane reduction on I-5 near Alger/Lake Samish Road will last through Sept. 4β€œ005: The northbound and southbound I-5 will be reduced to a single lane from 8 p.m. to 5 a.m. nightly Monday, Aug. 31, through Friday morning, Sept. 4, near Alger/Lake Samish Road (exit 240) for fish passage construction.”
  • βœ“
    The single lane reduction on I-5 near Alger/Lake Samish Road is for fish passage constructionβ€œThe northbound and southbound I-5 will be reduced to a single lane from 8 p.m. to 5 a.m. nightly Monday, Aug. 31, through Friday morning, Sept. 4, near Alger/Lake Samish Road (exit 240) for fish passage construction.”

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