Two inspectors in harnesses on the top chord of a steel truss bridge

Structural assessment for the infrastructure people depend on.

Independent inspection, analysis, and clear recommendations for the structures public and private owners are invested in.

30+
Years of combined assessment experience
24
States served
10,000+
Structures inspected
1,000+
Load ratings completed

Who we areOur values

Downtown Tulsa skyline above a line of trees

Community

We build up neighbors, colleagues, and clients through our unwavering investment in people.

Illuminated pedestrian bridge at dusk with the Oklahoma City skyline behind it

Stewardship

We safeguard public safety and public investment as the basis of our business.

Concrete arch piers of a river bridge seen from the water

Impact

We passionately strive to make the most of our time and opportunities.

Who we servePublic and private owners

State DOTs

Statewide inspection and load rating programs

Counties

Off-system bridges and county road structures

Municipalities

City bridges, culverts, and ancillary structures

Private owners

Rail, industrial, and privately held structures

How we're qualifiedCredentials behind every report

PE

Licensed engineers

Findings are reviewed and sealed by a licensed professional engineer.

SPRAT

Rope access technicians

Certified technicians reach the structure directly, without lifts or closures.

NBIS

Qualified team leaders

Qualified under 23 CFR 650 to lead federally compliant inspections.

Have a structure that needs a second look? Let's talk.

Contact us
Two inspectors on a ladder checking girder bearings at a concrete abutment
Inspector recording notes beneath the steel girders of a highway bridge
01

Bridge Inspection

Routine and NSTM inspections by NBIS-qualified team leaders, delivered in SNBI format.

RoutineIn-depthNSTM hands-onNSTM plansNondestructive testingElement-levelCulvertsTimber bridges
Engineer with a tablet looking up at the wall of a metal building
02

Buildings

Structural condition assessment for publicly and privately owned buildings. From the foundation to roof with findings and repair priorities any owner can act on.

Condition assessmentDamage evaluationSteel, concrete, and timber framingMasonryRoof and facadeRepair recommendations
Inspector in a harness examining a steel girder flange from below the deck
03

Emergency Response

Rapid on-site evaluation after impact, flood, fire, storm, or overload, with a clear call on the serviceability of the structure.

Impact damageFlood and stormFireOverloadPartial collapseSettlement and movement
Overhead sign truss spanning a highway on a clear day
04

Ancillary Structures

Inspection and evaluation of the structures beside the roadway: overhead signs, signals, high-mast lighting, and retaining walls.

Overhead signsTraffic signalsHigh-mast lightingRetaining wallsNoise walls
Engineer taking a reading at the base of a steel lattice tower leg
05

Other Structures

Structural condition assessment for towers, tanks, and the other assets an owner is accountable for.

Condition assessmentTowersTanksTimber structuresSpecialized accessRepair recommendations
Inspector on a ladder measuring a riveted steel girder connection at a bridge pier
06

Load Rating

LRFR and LFR ratings per the AASHTO Manual for Bridge Evaluation, with clear posting recommendations.

Legal loadsPermit vehiclesEmergency vehiclesAASHTOWare BrRNo-plans structures

Questions about scope or qualifications?

Contact us

Get in touch

Office

Vistera Group BLLC
3741 S Peoria Ave
Tulsa, OK 74105

Email

contact@visteragroup.com

Send a message

Message sent
Enter your name.
Enter your organization.
Enter a complete email address.
Enter a message.