# South Pasadena Planet bids #PW26-005247

Planning-Level Evaluation of SR-110 Interchange Ramp Alternatives

**Posted:** October 30, 2026
**Respond By:** December 11, 2026
**Identifier:** PW26-005247
**NAICS:** 541330

The City of South Pasadena is seeking a consultant to compare two interchange concepts for the Fair Oaks Avenue/Arroyo Parkway SR-110 interchange.
- **Government buyer:** City of South Pasadena, Public Works Department.
- **Procurement:** Planning-level comparison of the Hook-Ramp and Loop-Ramp alternatives; no products, part numbers, or OEMs are specified.
- **Requested services:** Review prior studies and information gaps; assess feasibility, constructability, right-of-way implications, and implementation complexity; prepare public-facing concept visuals; estimate order-of-magnitude costs and timelines; and identify risks, barriers, and potential fatal flaws.
- **Deliverables:** Draft and final summary memoranda documenting the evaluation, findings, recommendations, and next steps.
- **Scope limits:** Detailed engineering, environmental analysis, traffic modeling, surveying, and land acquisition are excluded. The work supports planning and budgeting.

### Description

The City of South Pasadena is seeking a qualified consultant to perform a planning-level comparative evaluation of Hook-Ramp and Loop-Ramp alternatives for the Fair Oaks Avenue / Arroyo Parkway (SR-110) interchange. The work includes evaluating the alternatives and preparing planning-level cost and implementation-time estimates, identifying fatal flaws, and documenting findings and considerations for future decision-making. The consultant is to provide a recommendation on next steps and associated costs, with draft and final summary memoranda as deliverables. Proposals are due electronically by December 10, 2026 at 5:00 PM.

[View original listing](https://vendors.planetbids.com/portal/44654/bo/bo-detail/147782)