BriggsB LLC is a computer integrated systems design and bridge engineering consulting studio working from its Ogden workshop at 1118 W Excalibur Way, Ogden, 84401-5111, United States. The team designs bascule spans, pedestrian bridges and structural retrofits that move with the water and stand against the years. Every study, rating and drawing is prepared by the same small group that answers the phone.
Each plate on the rack below is a service the studio delivers end to end. Panels P1 through P6 are rated and ready for a project review, and any one of them can be the first conversation you have with BriggsB LLC.
A bascule span is a deck that lifts on a trunnion so boats pass and traffic resumes. BriggsB LLC sizes the leaf, places the trunnion, balances the counterweight and details the deck face so the structure swings with calm geometry rather than strain. Our bascule span design work carries a project from concept layout through stamped construction drawings.
Trails, campuses and river parks need crossings that feel generous underfoot. Our pedestrian bridge engineering covers span selection, vibration control, guardrail geometry and foundations for light structures.
Older spans rarely need replacement; they need honest reading. Our structural retrofit assessments document corrosion, fatigue and movement, then propose repairs ranked by cost and consequence. BriggsB LLC keeps retrofits buildable with local crews and familiar materials.
A bridge earns its legal capacity through careful arithmetic. Our load rating and inspections pair field measurement with analysis so owners know exactly what a structure can carry today.
Good drawings still need accurate points on the ground. Our construction staking support translates trunnion centers, bearing lines and deck elevations into field staking that a survey crew can set without guesswork. We stay on call through erection.
Before steel is bought, options must be compared. Our feasibility and cost studies weigh span types, navigational clearances and life cycle expense on one page so a board can decide with confidence.
LOAD RATEDBriggsB LLC opens its Winter Review slots for span feasibility studies — reserve a place before the gauge rises.
The studio brings together computer integrated systems design, structural analysis and plain field judgment. That combination lets BriggsB LLC move from a first sketch of a moving bridge to a set of drawings a steel fabricator can build from without rework.
A bascule bridge is a machine as much as a structure. Its leaf turns on trunnion discs, its counterweight descends on sheave arcs, and its deck carries a riveted face that must stay flat under daily traffic. BriggsB LLC was founded to give these moving pieces the same disciplined engineering that fixed spans already receive. The studio studies loads in motion, not only loads at rest, and it treats the operator house, the clearance gauge and the control console as parts of the machine rather than afterthoughts.
When a client arrives with an existing crossing, the first task is measurement. We read the piers, note the corrosion pattern, and check whether the trunnion line still sits true. Only then does analysis begin. This order matters because a model built on guessed dimensions will recommend the wrong repair, and a retrofit that misses the real cause will return within a decade. BriggsB LLC would rather spend a week with a level and a gauge than a year defending a flawed assumption.
For new work, the studio starts from the water. Clearances, currents and the habits of the people who cross each day set the span before steel sizes are chosen. From that brief we produce a feasibility and cost study that compares at least three alternatives on the same basis. Boards appreciate a single page that names the trade off honestly instead of a binder that hides it.
The design phase pairs two disciplines. A structural model confirms that the leaf, the trunnion and the counterweight balance as intended. A computer integrated systems design view then maps the control path from lever to drive, so the moving parts behave predictably every time the bridge opens. This is where many bascule projects go wrong, and it is where BriggsB LLC spends its care.
Because the studio also performs load rating and inspections, the drawings reflect what inspectors will later see. Because it supports construction staking, the plans include the points a surveyor actually needs. The result is a set of documents that flows from analysis to field without translation loss.
BriggsB LLC keeps a small roster on purpose. The engineer who rates your bridge is the engineer who answers your call about it, and the person who walked the deck is the person who signs the drawing. That continuity is the quiet promise behind the studio name, and it is why clients return for a second span, a third trail crossing, and the repair program that keeps the first one standing.
Every BriggsB LLC engagement follows four stages, and each stage ends with a document a client can read without a translator.
We visit the site, measure the existing structure, photograph the trunnion line and record clearance data. Clients receive a short memo naming the governing constraints.
Using the field data we compare span options and rate load capacity. The deliverable is a study that places cost, schedule and risk side by side.
The chosen scheme becomes stamped drawings. Trunnion geometry, counterweight travel, deck panels and the operator house console are all resolved to buildable detail.
We stake the setting points, answer requests for information and review submittals. When the leaf first tilts away from its rest, BriggsB LLC is present to confirm the balance.
A bridge is a long lived asset, and the studio treats the relationship the same way. Three habits set BriggsB LLC apart from a drawings by the pound practice.
Most structural failures of bascule spans come from motion fatigue rather than simple overload. BriggsB LLC models the open and close cycle as a load case of its own, so the trunnion and the leaf connection are detailed for the life they will actually live. That single habit extends the service interval and lowers the cost of ownership.
A feasibility study is only useful if it says what a scheme cannot do. Our studies state where an option fails, not only where it succeeds. Owners make better decisions when the weaknesses sit on the same page as the strengths.
Because the same engineers who inspect also design and stake, nothing is lost between hand offs. Questions from the field reach people who already know the site, and answers arrive as drawings rather than opinions. This continuity keeps schedules short and rework rare.
If your crossing is tired, if a trail needs a dignified way over water, or if a board wants to know whether a moving span is even affordable, the studio is ready. Write to hello@briggsb.lat, call +12672131249, or request a span study today. BriggsB LLC: spans that open, bridges that last.