- 219 - SECTION 416 -- TEMPORARY LIGHTING SYSTEMS
416.01 Description
1.The Contractor shall furnis h and install the temporary lighting systems as described in the contract. The contract will indicate whether poles, luminaires, lamps, photo controls, power foundations, and breakaway bases are to be Department furnished.
2.The Contractor shall operate and maintain the lights daily from dusk to dawn throughout the life of the contract. The Contractor shall be responsible for the proper operation and maintenance of the temporary lighting system including replacement par ts. Any failure or malfunction of the system shall be promptly corrected by dusk of the following day.
416.02 Material Requirements
1.All Contractor-furnished lighti ng units and all other items required for a complete system shall conform to the requirements in the contract.
2.The Contractor shall obtain the Department-furnished materials from the Department's st orage area. The Contractor will be responsible for transporting the material from the Department storage area to the job site.
416.03 Construction Methods
1.Replacement lighting units:
a.On Contractor-furnished syst ems, additional poles, luminaires, and breakaway devices shall be retain ed in the Contractor's stock for replacement purposes. Upon completion of the project, the Department will, if the Contractor desires, accept th e surplus lighting units (up to 3 each poles, luminaires, and breakaway devices) as described in Subsection 109.06.
b.In the event of failure of a lighting unit on a Department- furnished system, the Department will provide additional lighting units for replacement by the Contractor.
c.In the event of damage to a lighting unit on a Department- furnished system, the Contractor shall be responsible in accordance with Section 107.
2.The power source shall be a dependable, well-regulated source of power adequate for the requirements of t he lighting system. The contract will indicate whether the Contractor or the Department arranges and pays for electrical power.
a.If the Contractor is requ ired to arrange and pay for the electrical power to the temporary light ing system, the source of power may be an electric utility serving the area, if su ch a source is available, or it may be an engine-generator furnished, operated, and maintained by the Contractor.
b.The Contractor will not be responsible for the cost of the electrical energy, which has been arranged by the Department, required for the operation of the temporary lighting.
3.The Contractor shall install, test, and operate the temporary lighting system before traffic is routed through the construction zone. The Contractor shall also maintain and operate the sy stem until the project is complete.
416.03 Temporary Lighting Systems
- 220 - 4. Department Furnished Equipment:
a.It will be the Contractor's responsibility to protect the Department’s poles, luminaires, and t he foundations from damage during installation, removal, sa lvage, storage, and transportation to and from the storage area. All items must be accounted for and in good working condition. Missing or damaged components must be r eplaced by the Contractor at no additional cost to the Department.
b.When the temporary lighting units are no longer required, the Contractor shall carefully dismantle, cl ean, and return the salvaged material to the Department's storage area indica ted in the contract. All components not ordered salvaged s hall become the property of the Contractor and removed from the project.
c.The Contractor shall notify the Engineer 2 days before delivery of the materials to the storage area. Upon delivery, the materials shall be placed in the storage area at the locations designated by the Engineer.
d.When the units are returned: (i) All luminaires shall have the photo control removed and the photo control receptacle and the lu minaire mounting hole covered with duct tape. Photo controls shall becom e the property of the Contractor. (ii) All poles shall have handhold covers fastened securely in place. (iii) Power foundations and transformer bases shall have all associated bolts, nuts, and washers a ttached. Breakaway support couplings shall be bundled in sets of 4 held toge ther with duct tape with all bolts, nuts, and washers fastened in place on the couplings.
416.04 Method of Measurement
1.Installation of Contractor and Department-furnished temporary lighting systems shall be measured by the each.
a.When the bid proposal's Sch edule of Items contains the pay item "Temporary Lighting System, Type _____", then the Contractor is required to furnish the temporary lighting system.
2.“Operation and Maintenance of Temporary Lighting Systems, Type___” shall be measured by the number of calendar days each temporary lighting system is in operation.
416.05 Basis of Payment
1.Pay Item Pay Unit Temporary Lighting System, Type ____ Each (ea) Operation and Maintenance of Temporary Day (d) Lighting System, Type ____
2.Payment shall be made according to the following schedule: Two-thirds of the contract unit price will be paid when the system is installed, in place, and approved by the Engineer; one-third of the contract unit price will be paid when the system is removed, delivered to the Department, and accepted by the Engineer.
3.Payment is full compensation for all work described in this Section. - 221 - SECTION 417 -- HIGHWAY SIGNS
417.01 Description
1.This work shall consist of all materials and labor necessary to provide, fabricate, and install highwa y signs at the locations shown in the contract.
417.02 Material Requirements
1.Materials for highway signs shall conform to the requirements of Section 1070 and the current adopted version of the Manual on Uniform Traffic Control Devices for Streets and Highways .
a."Type A Signs" are regulatory, warning, guide, and information signs composed of a flat aluminum sheet background surfaced with retroreflective sheeting and the message either directly applied or reverse screened on the sign face, all in the colors specified in the contract. Bridge and hazard markers shall be classified as a Type A sign.
b."Type B Signs" are large guide and information signs mounted along the roadside or on overhead structures and constructed of molded extruded panels or reinforced aluminum, horizontally joined panels with retroreflective sign sheeting and direct applied letters, numerals, symbols, and borders.
c.“Type C Signs” are large guide and information signs mounted on overhead structures and construc ted of molded extruded panels or reinforced aluminum, horizontally joined panels sheeted with retroreflective sign sheeting and direct applied letters , numerals, symbols, and borders.
2.Mounting:
a."Type A Signs" shall be mounted on breakaway posts made from aluminum, steel, or wood as indicated in the contract.
b.Type B ground mounted signs shall be mounted along the roadside as shown in the contract and supported by structural steel beam breakaway posts with the post stub extending into round, reinforced concrete footings.
c.Type B and C overhead signs shall be mounted over the roadway on sign structures, including cantilever structures, with vertical supports installed on reinforced concrete foundations or on sign brackets attached to existing roadway bridges.
3.Retroreflective sheeting for Type A and B signs shall meet the requirements of ASTM D 4956 Type IV.
4.Retroreflective sheeting for Type C signs shall meet the requirements of ASTM D 4956 Type XI.
5.All concrete shall be Class 47B-3000 conforming to the requirements of Section 1002.
6.Before fabrication, the Cont ractor shall prepare and submit complete design drawings for Type B and C signs for approval. These shall include 6 sets of prints and drawings on half size plan sheets (11 x 17 inches [297 x 420 mm]) prepared and signed by a registered Professional Engineer licensed in Nebraska.
Source: Nebraska Standard Specifications for Highway Construction, 2017 Edition. Pages 253–254 of 1,048.