Issaquah Fall City Road Improvement Project

Senior Project Engineer

Jed Ireland

aerial view of roundabout at 242nd on Issaquah Fall City Road under construction, looking nearly complete

SE Issaquah-Fall City Road is a vital connection route to residents of the City of Sammamish and surrounding communities. This project will double the existing two-lane section to a four-lane section.

It promotes the City’s goal of complete streets by including bike lanes, sidewalks, landscaping, and a protected student crossing at Pacific Cascade Middle School. A bridge located between 247th and Klahanie Drive will raise the roadway to improve safety and meet federal driver stopping sight distance requirements. The bridge will span North Fork Issaquah Creek; an open creek channel will replace the existing a culvert underneath the roadway.

Phase 1 completed construction and opened in May 2021.

Learn about Phase 2.

map indicating two phases of the Issquah Fall City Road project — Phases of the project

Phase 1 Opening

oblique aerial of constructed roundabout on Issaquah Fall City Road next to the QFC, with three entrance and exit points

aerial photo of constructed roundabout with four lanes of through traffic and two lanes on the cross-street

aerial of Issaquah Fall City Road bridge with roundabout in the distance

Construction Photos

construction site or staging area beside an intersection

dirt road compressed in work area next to paved road

construction on Issaquah Fall City Road, with space cleared for additional work adjacent to an existing paved lane, traffic barriers lining the edge

aerial view of construction on Issaquah Fall City Road over a stream or wet area with fallen logs and lush vegetation

construction of Issaquah Fall City Road bridge

construction of the Issaquah Fall City Road bridge at nighttime

sunset at the bridge construction site as girders are being placed

beneath the Issaquah Fall City Road bridge, looking up through girders

black fresh road surface on two lanes of Issaquah Fall City Road beside the entrance to a housing development

earth road surface with sidewalk and supplies along the edge

road closure at the start of construction on Issaquah Fall City Road, with the road surface completely removed

large tube made of rebar for construction of Issaquah Fall City Road

construction equipment during build of Issaquah Fall City Road, with a bare earth surface

Issaquah Fall City Road bridge from the side, showing wooden railings along the side of the bridge under construction and concrete pilings beneath

a flurry of construction activity at the bridge on Issaquah Fall City Road

dry utility supplies underneath the bridge at Issaquah Fall City Road

new sidewalk on bridge beside forms for railings

deck of the bridge on Issaquah Fall City Road being poured with concrete, about halfway complete

workers watching elevated work occur at an existing stoplight on Issaquah Fall City Road

workers inspecting progress of excavation at Issaquah Fall City Road construction

excavator digging a trench beside existing road surface at Issaquah Fall City Road

construction equipment on the shoulder of Issaquah Fall City Road

construction of bridge on Issaquah Fall City Road with railings being built beside sidewalk

roundabout at Klahanie under construction, with an excavator working on the roundabout island

two rollers on fresh paving along four lanes of traffic with a median island and sidewalk on Issaquah Fall City Road

bridge on Issaquah Fall City Road under construction

WHAT ARE THE WORK HOURS ON ISSAQUAH FALL CITY ROAD DURING CONSTRUCTION?

Monday - Friday 9:30 am - 3:30 pm
During road closure M-F 7 am - 8 pm (between 247th and Klahanie Dr)
Optional Saturday work 9 am - 6 pm

IS THE CLOSURE FOR THE NEW "BRIDGE" BETWEEN THE MIDDLE SCHOOL AND THE KLAHANIE SHOPPING CENTER FOR THE FULL TWO YEARS OR JUST A PORTION OF THE TIME?

The road closure is during bridge construction only, currently scheduled to begin March 28, 2020

FOR THE REMAINDER OF THE ROAD AREA COVERED WILL IT BE CLOSED FOR TWO YEARS? PARTIALLY OPEN THE WHOLE CONSTRUCTION TIME WITH FLAGGERS, ETC?

The portion of road between 247^th and Klahanie Dr will be closed for bridge construction. No other closures are planned (barring deliveries of large bridge structures). Construction will be occurring on the entire roadway for 2-years, with traffic control and flaggers during work hours only.

WILL DIFFERENT SEGMENTS OF THE ROAD BE CLOSED AT DIFFERENT TIMES?

Large bridge girder deliveries and the operation of large construction equipment and trucks may necessitate the closure of the road at different times. Unfortunately, we won't have specific information until bridge construction begins.

WHAT IS THE TOTAL DURATION OF THE PROJECT?

The entire project is scheduled for 2 years of construction. The bridge construction is scheduled to last 8 months

WHICH SEGMENTS OF THE ROAD WILL BE CLOSED? IF YOU ARE COMING FROM THE NORTH (ALONG SOUTHBOUND IFCR), WILL YOU STILL BE ABLE TO ACCESS KLAHANIE BLVD?

The section of roadway between 247th and Klahanie Dr will be closed for bridge construction. You will be able to access Klahanie Dr SE from the East and North

HOW WILL THE DRIVING PUBLIC KNOW THAT LOCAL BUSINESSES ARE STILL OPEN AND SEE REAL-TIME PROJECT INFORMATION WHILE DRIVING?

The project includes FOUR (4) electronic variable message board signs that will share information with the driving public as the project is being built

DO YOU HAVE ANY INFORMATION ABOUT TIMING OF DESIGN OR CONSTRUCTION FOR PHASE 2 OF THE ISSAQUAH FALL CITY ROAD PROJECT, FROM KLAHANIE DR SE TO SE ISSAQUAH-BEAVER LAKE ROAD?