SR-58 overthe Sennet River
Statement of Qualifications for RFQ TSD-26-DB-0412, the design-build replacement of Bridge 58-0412. We've set it the way you read a job, as a plan set. Run the stages yourself, one sheet down.
1.Four lanes at rush hour, every weekday, for 1,640 days.
RFQ section 1 asks for a letter of submittal. RFQ section 2.3 gives the sentence we built this package on. "The corridor shall carry four through lanes during peak periods for the full contract duration."
Bridge 58-0412 went into service in 1961. Its deck is rated poor, 46,200 vehicles cross it each day and nine percent of them are trucks. Brisling and Port Ansley can't lose it for a season.
Cobbold Constructors and Wrackline Marine have formed a joint venture for this job, jointly and severally liable, with Nye Trask Engineers as lead designer. We've built twin river bridges under traffic together before, and that work is drawn on sheet S-501.
Our concept builds the north structure first, moves all four lanes onto it, removes the old bridge, then builds the south structure in its footprint. No lane comes off at a peak hour. Your reviewers, our engineers and our crews will all read from this set.
Where each scored criterion is answered
RFQ section 8, Evaluation. 100 points, bar widths to scale. Pick a criterion.
2.Stage the bridge yourself.
Drag anywhere on the drawing. Fifty-four months run left to right, with old spans coming out, new spans going in and each lane moving across when it's time.
3.Pick the closures. We'll show you who pays for them.
The first traffic shift needs 312 productive closure hours between June 4 and August 26, 2029, and two of those closures have to be full weekends. Night closures are one direction. Weekends close both.
4.One pier, from shaft tip to first truck.
RFQ section 4 asks how design and construction stay in step. Keep scrolling through Pier 3, station 422+60, the tallest in the crossing.
5.Two firms, one bond, and a name beside every risk.
Cobbold holds 60 percent of the venture and Wrackline holds 40. Both are liable for the whole job. Pick a risk and the chart shows who carries it, in points and in dollars of the allowance on Q-701.
6.Three crossings we've delivered this way.
RFQ section 6 asks for three design-build projects with the same key people. Each is drawn from its record set at one common scale, so you can size them against 58-0412.
7.The baseline, with the river's calendar over it.
Notice to proceed July 6, 2027. The finish date below moves with what you picked on TC-201 and what you drop on Q-701, because they all read the same day count.
8.Our cost understanding, set as a quantities sheet.
RFQ section 8 scores this at five points and doesn't bind it. The sealed price comes in Step 2. Every line that's a choice can drop, and the drawing and the total answer. We'd keep all of them, because each drop moves risk or days onto Tamarack and most cost more in field overhead than they save.
9.1For the Chief Engineer.
Who stamps what, and when do my reviewers get to say no?
9.2For the District Traffic Engineer.
Sixty feet of deck carries four lanes for 26 months. Is that enough width?
9.3For the Environmental Resources Manager.
What goes in the water, when, and how far does the noise carry?
Casing method
Silt curtain
Month the work starts
9.4For the Procurement Officer.
Does this package pass before anyone scores it?
9.5For the Deputy Secretary for Finance.
What does this draw from each state fiscal year, and what if federal funds slip?
10.1Compliance matrix.
Every "shall" in the RFQ, our response and where it's answered. There's one exception and two partials, each with the reason written beside it.
10.2Addenda log, and a question for the panel.
All three addenda are acknowledged on Form E. Questions we asked and the Department's answers are logged with their dates.
10.3Required forms, terms in plain language, and what's still open.
Terms, without the lawyers
Nothing on this page is a sealed price. If we're shortlisted, Step 2 binds us to a lump sum with these key people and this staging concept. Any change to either goes to your Project Manager in writing first. Quantities on Q-701 are our reading of the concept today and can move when borings at Pier 3 come back.
What's still open
Send the team a question instead
Next, the panel shortlists on January 15, 2027 and the Step 2 RFP goes out February 8.