SR - AGR-6307.1 - DESIGN REVISIONS FOR GLASSELL ST AND WALNUT AVE LEFT-TURN SIGNAL MODIFICATIONS1. SUBJECT
First Amendment to Agreement 6307 with KOA Corporation for professional services.
2. SUMMARY
The First Amendment authorizes a cost increase to Agreement 6307 to provide design revisions
for the Glassell Street and Walnut Avenue Left Turn Signal Modifications.
3. RECOMMENDED ACTION
Approve the First Amendment to the professional services agreement in the amount not to
exceed $3,600 to KOA Corporation of Orange, CA, and authorize the Mayor and the City Clerk
to execute on behalf of the City.
4. FISCAL IMPACT
Funds are budgeted and are available in the following accounts:
550.5032.56100.30029 Glassell/Walnut HSIP $ 277,000
5. STRATEGIC PLAN GOAL(S)
lb. Provide for a safe community — Provide and maintain infrastructure necessary to ensure the
safety of the public.
3d. Enhance and promote quality of life in the community- Maintain and improve multi -modal
transportation throughout the City.
6. GENERAL PLAN IMPLEMENTATION 7-771
Infrastructure Goal 3.0 Ensure adequate maintenance of public rights -of -way to enhance
public safety and improve circulation.
Policy 3.3: Continue to design, install, and maintain signals, signage, street lights, and traffic
control devices within rights -of -way.
7. DISCUSSION and BACKGROUND
On February 9, 2016 the City entered into Agreement 6307 with KOA Corporation to provide
professional engineering services for the Walnut Avenue and Glassell Street; and Chapman
Avenue and James Street Left Turn Signal Modifications Project funded through the Highway
Safety Improvement Program (HSIP). The engineering design contract was awarded for $28,340.
During the design process, it became apparent in order to avoid the removal of on- street parking
along Walnut Avenue near Glassell Street, the plans would need to be modified to provide a split
phase traffic signal operation. This requires a modification to the striping and signal phasing
plans from the original contemplated design.
KOA Corporation has submitted a request for a $3,600 change order to complete the striping and
signal phasing plan changes. The increase will bring the total contract amount to $31,940,
requiring City Council approval. The change order is entirely funded with the HSIP grant
awarded for the project. It is anticipated that the construction contract will be advertised later this
year with construction anticipated in the Spring 2018.
8. ATTACHMENTS
• Location Map
2