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, I VII-3 UTILITY RELOCATION COSTS Uti 1 lty relocation costs incl vae wor~ required to relocate or reroute utility lines, including sanitary, water, gas and electric ,lOr! telephone. Inmostca,<,s, the relocatioll consists of lowering the affected utilities to a sufficient depth below the channel to avoid exposlnq them durin<j subsequ€lltdegradation. Utl1ityrelocatiol'lcosts also includethereloca- tionofirrigationCdllaldivers1ond,,"s. TAALE VII-~ RIGHT_OF.WAV UNIT COSTS lt~ R;9ht.of-w~y acquisition Agricultural Commercial/industrial Unit Co~t $ 6,OOO/acre l'iO,OOCl/acre [ r TOTAL CONSTRUCTION COST This cost represents the total capital outlaynec!'!ssaryfor theconstrlJC- tian of improvements to the drainaqeway and street crossings and the neces. sary utility relocations. ~asement acquisition Open space Residential Commercial/industrial 2,nOO/acre M),OO()/acre SO,()()I)/acre I CONT!NGENCY A contingency has been applied to all construction related costs to account for uncertainties associated\olith the preliminary design. ThecontingellCY accounts for unkno\oll1s in design of the facilities and inuncertafntiesand inaccuracies associated with the quantity estimates. They also inclurle, to some extent, uncertainties in the unit cost estimates. The contingency also accounts fore1lgi1leeringa1lddesigncosts, inspection of construction activitiesanrl administration of contracts. The contingency used for this project is 30 percent of the construction costs. MAINTENANCE Maintenance of the rlver falls into three primary categories; routine, annual andfloonrelated. Responsihilitiesfallontovariousagencieswith levels of md;ntenance _arying bet\oleen municipdlHies and the funds dvail. able. Rout ine mdlntendnce consists of trash pickup ~long the h~nh of the ri~er dnd mO\oliog and weed control of qrassed areas along the channel greenway. These routine operations are pedormed bet\oleen three and five times per yearona..erage. PROPERTY ACQUI~ITION COSTS Estimates of land acquisition costs associated with the improvements have heen made incl udinq the purChase of rig~t-of-way necessary for the con- struction of permanent improvements alongtl1edrainageway. The costs also include temporary construction easements te dl1o\olaccf'SS and working space for equip-nent. Estimates of the value of property and easements required for LI, i s proj ec t were marle by contact; ng rea 1 estate ~g('ot<;, county asses- sors offices, dnd countyextensien agents when agricultural land WdS in_ vohe,j, The unit costs ar~ SUlTJrr\ar1zed i~ Table "11-2. Annual maintenance a!ld repair consists of tnI' replacement of dam.lged or ril'tprinrating sections of improvf'ment,. in channel orchdnnel bank debris remo~al. repair and reseedi ng of minor erosion damage, hank stabil i <atie1l of Jre~S siJbj r.ct to conti nued eras ion, and tlli Tl1l i ng and pruni ng of vegeta- tion. Flood related ~aintenJnce operations can be described as damage repair. As such. these itffil<; will ~ot be ;nCl'Jd",d.