CPA – Statewide Procurement

Attachment G - Page 1 of 5

Texas Comptroller of Public Accounts Statewide Procurement Division

IFB No. 304T-26-065A2.1

Trailer Mounted – Under-Bridge Inspection Trailer

Attachment G

Requirements and Specifications

Attachment G - Page 2 of 5

IFB No. 304T-26-065A2.1 Specification No. 065-05-26

Revised: September 2025

Attachment G

UNDER-BRIDGE INSPECTION TRAILER

PART I

SPECIFICATION

1. SCOPE: This specification is to define the minimum requirements to purchase an under-bridge inspection trailer that enables operators to erect and extend the tower and platform over sidewalks and other barriers without restricting under bridge operations. The trailer-mounted under-bridge unit must come equipped with enough hardware and capabilities to service more than 1,100 square feet of under-bridge area with one deck placement. The unit must be capable of being operated by one person alone. The under-bridge inspection trailer described by these specifications must be tow vehicle type (supplied from current Customer(s) fleet).

The trailer combination will be capable of providing under bridge access for maintenance or renovation from a fixed point on a bridge deck. The under-bridge trailer and components must be designed and constructed of high quality, corrosion resistant, rugged materials suitable for use in a field environment and for ease of maintainability.

The proposed under bridge inspection trailer must meet or exceed the specifications listed in the text below. The unit provided must meet or exceed all Federal and State of Texas safety, health, lighting and noise regulations and standards in effect and applicable to equipment furnished at the time of manufacture. It is the intent of the agency to purchase goods, equipment and services having the least adverse environmental impact, within the constraints of statutory purchasing requirements, the agency need, availability, and sound economic considerations. Suggested changes and environmental enhancements for possible inclusion in future revisions of this specification are encouraged. Respondents are cautioned to read these specifications carefully. Units delivered as a result of this advertisement must fully meet all requirements of these specifications.

EXAMPLES :

Anderson UnderBridge model HP 35 or CPA approved equal.

NOTE: A unit furnished to this specification must meet Standard Compliance ANSI A92.20.

A copy of the ANSI compliance certificate for each model must be provided to the agency prior to award or, a letter on company letterhead verifying ANSI compliance for model bid prior to award and a copy of the ANSI compliance certificate prior to delivery.

Attachment G - Page 3 of 5

2. GENERAL: The under-bridge inspection trailer must be a triple-axle, six-wheeled and equipped with a pintle-ring hitch that is on the same level and plane as the tow vehicle's hitch, so that the pulling force through the tongue to the trailer is horizontal when the vehicle-trailer system is on a horizontally flat surface. The trailer must be of durable construction, incorporating welded rectangular steel tubing and aircraft-grade aluminum to resist twisting and excessive deflections. The exposed portions of the system must tolerate 100% relative humidity (rain or spray) and all other adverse conditions, such as dust, shock, and vibrations, which may be encountered in highway operations. Trailer exterior must be painted manufacturer's standard color or bright white.

Yes No

2.1. Safety chains: Two (2) lengths of 9/32 inch Grade 80 alloy safety chain must be furnished. One end must be attached to each side at the tongue with a 9/32-inch coupling link to a 1/2-inch round stock formed in a loop and lap welded or bolted with high strength bolts to the tongue on each side. The other end must be equipped with a latch hook 9/32-inch safety hook or equivalent that attaches to the hitch.

Yes No

2.2. The lighting system must include brake, backup, tail, and turn signal lights. The lighting system must be configured so that all of its signal lights act in concert with those of the tow vehicle. The unit must have a 7-way, RV type electrical plug.

Both rear brake lights and the backup lights must be of the LED type.

Yes No

2.3. The trailer hitch must be a pintle hitch ring meeting the weight requirements of the trailer equipment. Yes No

2.4. The trailer must have an operator-activated communication system at the main control panel and voice-activated communication system at the platform.

Yes No

2.5. The trailer and platform must be equipped with LED work

lights with sufficient lighting to perform night inspections.

Lighting coverage must incorporate street level activity, crossover access, tower platform and lower platform areas.

Yes No

3. The TRAILER must have:

3.1. Minimum 18HP gas engine to power the main hydraulic

system. Net HP

3.2. Self-propelled hydraulic drive for operations. Yes No

3.3. Level-sensing and load sensing system with visual and audible alarms. Yes No

3.4. Shall have a minimum of two stationary control locations. One at Yes No

Attachment G - Page 4 of 5 the trailer and one at the platform.

3.5. Wireless remote with proportional paddles. Yes No

3.6. Minimum two automatic outriggers. Yes No

3.7. Minimum 18,000 lbs. total weight. ______ Weight

3.8. Maximum 35' unit length in a travel position. ______ Length

3.9. Maximum 8' 4" unit width in a travel position. ______ Width

3.10. Maximum 11' unit height in a travel position. ______ Height

3.11. One spare wheel with tire must be mounted and secured to the trailer. Yes No

3.12. Step or ladder attachments designed to mount on platform to gain access to additional heights. Yes No

3.13. Standard electric brakes with breakaway switch. Yes No

3.14. Quick-connect availability on the trailer for the use of water, electricity, and air. These connections will allow the operator to perform clean-up on the platform such as pressure washing any debris off the platform. (i.e., the pressure washing unit will be stationed on the bridge deck avoiding any hanging hoses over the edge of the bridge).

Yes No

4. The PLATFORM must have:

4.1. Minimum, 35' platform length and must always

remain horizontal while extended during operations.

_______ Platform Length

4.2. Minimum 17' 4" drop depth. _______ Drop Depth

4.3. Maximum 14' 2" platform swing clearance. _______ Swing Clearance

4.4. Minimum 2' 7" aluminum platform width. _______ Platform Width

4.5. Minimum 3' 1" steel platform width. _______ Platform Width

4.6. Maximum 6' 1" height clearance. _______ Height Clearance

4.7. Minimum 950 lbs. weight capacity. _____ lbs.

4.8. Minimum 180° platform rotation. _____ °

4.9. Maximum grade of 5°. _____ °

4.10. Have a ±5° tower adjustment. Yes No

4.11. Have a CANbus control system with minimum 7" main panel display. _____ inches

4.12. Have fall arrest anchor points. Yes No

Attachment G - Page 5 of 5

5. INSTRUCTION ON SAFETY, OPERATION AND PREVENTIVE

MAINTENANCE:

Contractor must provide the services of a competent factory trained technician thoroughly trained in the use and operation of the unit to the agency to provide:

5.1. Operator Training: A minimum eight-hour instruction on

safety, operation and preventive maintenance of the unit for each delivery location. These services must be provided after the unit has been delivered and is ready for operation but prior to payment.

Yes No

5.2. Preventative Maintenance: An on-site classroom training on preventative maintenance and periodic maintenance schedules that are required for inspections and servicing of the trailer and platform within 30 days of delivery.

Yes No

5.3. Vendor will ship trailer and all additional documentation and components to the Customer prior to onsite use and/or training.

Yes No

6. MANUAL(S):

Original manual(s) in paper format and digital must be delivered with the unit. It is requested but not required that the manual be printed on recycled paper. Manuals must include:

6.1. An illustrated parts list(s) coving all components of the unit identifying parts by part number, description, and component location.

Yes No

6.2. Hydraulic and electrical schematics shall be provided as part of the manuals. Yes No

6.3. All necessary operating instructions and maintenance

procedures for the unit and engine(s). Yes No

6.4. The following additional information must be

provided by the vendor at time of delivery if not included in the manual required above.

6.4.1. Manufacturer's recommended service

and preventive maintenance intervals. Yes No

6.4.2. Recommended fluids, lubricants and their SAE or API

equivalents. Yes No