20/0271 - Road Construction at Cypress Rose Hill Road (Section 11) North of Seidel Cemetery Road to North of FM2920

This contract is for road construction at Cypress Rose Hill Road (Section 11) in Harris County, Texas. The work includes site preparation and earthwork, subgrade and paving, drainage, traffic control, signing and pavement markings, traffic signals, and stormwater pollution prevention. The contract was awarded to Mar-Con Services, LLC. based on the low bid of $3,978,697. The contract duration is approximately 1 year, from November 10, 2020, to November 9, 2021. Some key features of the project include: * 11,732 linear feet of reinforced concrete curb * 17,853 square yards of 10-inch reinforced concrete pavement * 1432 square yards of 10-inch reinforced concrete pavement high strength * 1,299 linear feet of trench safety system * 626 tons of commercial lime slurry for subgrade stabilization * 27340 square yards of lime-fly ash stabilized subgrade * 3147 tons of HMAC base course * 17853 square yards of 10-inch reinforced concrete pavement, including appurtenances * 803 square yards of 10-inch reinforced concrete driveways, including appurtenances * 1432 square yards of 10-inch reinforced concrete pavement high strength * 532 tons of 1.5-inch HMAC Type "D" surface course * 58 tons of 2-inch HMAC Type "D" surface course * 12 curb ramps (Type 7) * 39 square yards of esplanades, medians, and directional islands * 39 square yards of coloring concrete medians (black) * 2297 linear feet of 24-inch RCP (ASTM C76, Class III) * 341 linear feet of 30-inch RCP (ASTM C76, Class III) * 1153 linear feet of 36-inch RCP (ASTM C76, Class III) * 469 linear feet of 42-inch RCP (ASTM C76, Class III) * 226 linear feet of 48-inch RCP (ASTM C76, Class III) * 123 linear feet of 48-inch RCP (ASTM C76, Class V) * 1204 linear feet of precast reinforced concrete box, C1433 (all depths) - (4' x 4') * 69 linear feet of precast reinforced concrete box, C1433 (all depths) - (5' x 4') * 160 linear feet of precast reinforced concrete box, C1433 (all depths) - (6' x 3') * 5 linear feet of precast reinforced concrete box, C1433 (all depths) - (5' x 5') * 1 precast set (Type II) (24") (RCP) (6:1) with pipe runners * 2 precast sets (Type II) (24") (RCP) (4:1) with pipe runners * 2 precast sets (Type I) (36") (RCP) (4:1) with pipe runners * 1 precast set (Type 1) (6' x 3') (RCB) (4:1) with pipe runners * 1 precast concrete manhole (<42") (all depths) * 12 precast concrete manholes (>48") (all depths) * 10 precast concrete manholes on reinforced concrete box (all depths) * 19 precast Type "A" inlets * 19 precast Type "BB" inlets * 5 precast Type "BB" modified w/ backslope interceptor * 4 precast Type "C-2" inlets w/ 2 extensions * 14 traffic control items, including temporary traffic signals, barricades, and signing * 3 aluminum signs (high intensity sheeting) * 5 aluminum signs (ground mounted) * 16 warning signs (high intensity sheeting) * 1,735 linear feet of reflectorized pavement markings, yellow, Type II, painted median nose for esplanade * 430 linear feet of thermoplastic pavement markings (Type I) white, 4" wide (brk) * 4,060 linear feet of thermoplastic pavement markings (Type I) yellow, 4" wide (sld) * 1,170 linear feet of thermoplastic pavement markings (Type I) white, 8" wide (sld) * 952 linear feet of thermoplastic pavement markings (Type I) white, 12" wide (sld) * 257 linear feet of thermoplastic pavement markings (Type I) white, 24" wide (sld) * 468 reflectorized pavement markers, white, Type I-C, 4" square * 144 reflectorized pavement markers, white, Type II-C-R, 4" square * 568 non-reflectorized white raised traffic buttons, 4" diameter * 140 non-reflectorized yellow raised traffic buttons, 4" diameter * 175 reflectorized pavement markers, yellow, Type II-A-A, 4" square * 11 thermoplastic white reflectorized "only" words (Type 1) * 11 thermoplastic white reflectorized "left arrow" symbols (Type 1) * 1 precast concrete truck washout structure * 3 acres of hydro-mulch seeding * 1,776 square yards of block sod (16" strip) for erosion control * 48 inlet protection barriers, Stage I * 48 inlet protection barriers, Stage II * 240 linear feet of reinforced filter fabric barrier * 446 square yards of stabilized construction access (Type I - rock) * 2 TPDES general permit no. TXR150000 notice of intent (NOI) application fees * 2 concrete truck washout structures * 14 months of SWPPP inspection and maintenance * 400 hours of off-duty uniformed police officer services * 100 linear feet of well point system for dewatering * 800 linear feet of construction safety fence