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Home My WebLink About1981-12-15; City Council; 6848; Buena Vista Storm Drain East of Highland Dr.n w AB#* TITLE: MTG. 12/15/81 OF HIGHLAND DRIVE DEPT. ENG BUENA VISTA STORM DRAIN EAST . .. z 0 5 a DEPT. HD.$- CITY Am= CITY UGRp z * RECOMMENDED ACTION: Authorize staff to proceed with the project as a Cash Contract. ITEM EXPLANATION: This project is part of a joint sewer-storm drain project contained in the current (1980-81) Capital Improvement Program. It is identified as project 3099, has $150,000 allocated and is indicated as being an assessment district. If we proceed as an assessment district, we must spread the cost on the basis of direct benefit received. Direct benefit can be attributed to the City and to six of the lots in the immediate vicinity of Buena Vista and Valley. Of the six lots, only two are severely impacted (home and/or garage flooding). used for non-residential purposes. These four would probably oppose an assessment of $6,000 to $8,000. The City's share of an Assessment Dis- trict would be approximately $49,000 (ha1 f of construction , assessment engineering and bond counsel costs plus approximately $4,000 in staff time). The assessment district process is rather lengthy and complicated. A basic outline of the process is attached as Exhibit C. Normally, assess- ment districts succeed where there is benefit to the large majority of assessed property owners or where the City pays all costs except for those property owners receiving significant direct benefit. If a majority of property owners oppose the district, the City Council can overrule but only with a 4/5 vote. If an assessment district fails due to majority protest and the City takes no action, it is probable that litigation will be initiated by one of the significantly affected property owners. The other four have minor impacts, are undeveloped or are An alternative course of action, and one which is recomnended by staff, would be for Council to authorize staff to proceed to construct the storm drain by Cash Contract. the storm drain construction and still be able to participate in a separate assessment district process to construct necessary sewer facilities. There are sufficient funds available to pay for I FISCAL IMPACT: Funds in the amount of $150,000 are available in project account No. 3099. Direct and indirect cost of an assessment district would be approximately $94,000 ($45,000 direct to property owners, $45,000 direct and $4,000 staff time to City). Cost of a Cash Contract is estimated at $64,240. I EXHIBITS: A. Vicinity Map B. Drainage Area Map C. Assessment District Process Chart D. Preliminary Engineer's Report I ,& . . . .. . . -- PARCEL NO. -- SHEET CITY OF CARLSBAD GI- ENGINE€ RING DEPARTMENT VA L L E Y ST: 5 TORIMDRA/N AS5€5SME&JT MAP . t c I I.. . t OESCRI PTlON SCALE CITY ENGINEER FIECE) ,BK: // EXHIBIT B L. f 1;- EXHIBIT C 4 ,- October 8, 1981 VALLEY STREET AND BUENA VISTA WAY ASSESSMENT DISTRICT ENGINEERING REPORT I. SCOPE This report outlines the current problems of runoff, erosion, and deposition associated with the Buena Vista drainage basin and incorporates recommendations for construction of facili- ties to correct them, with costs and proposed methods of financing. 11. PROJECT DESCRIPTION Buena Vista Way, between Arland Road and Valley Street is the area of drainage concentration from a watershed of approximately 30 acres. The area lying between Buena Vista Way and Highland Street is subjected to concentrated runoff from the upper watershed and suffers considerable erosion and except for a few homes is undeveloped. There is no existing drainage system in the area to collect and dispose of the runoff. As a result, most of the flood waters from Valley and Elm, Buena Vista and Crest Drive, and part of Wilson Street is collected at Buena Vista Way and Valley intersection. This report proposes the construction of drainage facilities which will correct the flooding problem in Buena Vista Way as well as allow development of the unimproved areas in a reason- able manner. Also included is what is considered to be the most desirable method of financing the project. EXHIBIT D (Page 1 of 3) I I I. ESTIFIATED COSTS I tem Descr i p t i on __I 1. 18" R.C.P. Connector 2. 27" R.C.P. 3. Storm Drain Manhole 4. Curb inlet Type D-10 5. Curb inlet Type OCPl 5 feet diameter Quanti ty Unit Ex tens i on 67 L.F. $ 46/L.F. $ 3,082 714 L.F. 55/L.F. 39 , 270 3 1,725.00 5,175 5 , 000 1,000 SUBTOTAL $53,527 20% Contingency 10,713 TOTAL $64 , 240 IV. FINANCING Because of the high construction costs and assessments, a special assess- ment district using the Improvement Act of 1911, Division 7, of the Streets and Highways Code or the Municipal Improvement Act of 1913, Division 12, would be desirable for this project. bonds would allow owners to pay costs over this period of time at reason- able interest rates taking advantage of tax free bonds. Using 1911 10-year The Municipal Improvement Act of 1913 using 1911 Bonds works well for a project of this size and characteristics. In this procedure, the City sells the bonds prior to beginning work and progress payments are made to the contractor. Since this is a cash job for the contractor it will attract more bidders and reduce costs by competition. In the 1911 Act procedure the contractor must finance himself during the construction period which usually limits the bidder's market. There are other advantages and disadvantages of one Act over another which are not pertinent at this time and are not discussed in this re- port except to point out that estimated construction costs of the pro- ject are based upon 1913 Act proceedings. increase as much as 10% if the 1911 Act procedure were used since con- tractor would have to finance himself through the work period. These costs would probably EXHIBIT D (Page 2 of 3) V. ASSESSMENTS It is statutory under the Streets and Highways Code that the engineer apportion costs of improvement of a special assessment district according to benefits received. would result from this project are: Some of the benefits to property that 1. Recovery of land. 2. Preventing inundation of land and buildings. 3. 4. 5. Inhibiting erosion and deposition. 6. Reducing nuisances and hazards. Providing unobstructed access to streets. Allowing construction or widening of streets which serve local and extended areas, To look at this list it could be argued that the area of benefit should extend to the boundaries of the watershed, but those properties outside of the immediate area have problems of their own which they have already taken care of or will have to face sooner or later. To extend the boundaries of an assessment district beyond the area of direct benefit is sometimes necessary, but it is impossible to convince people that they should pay for another person's problem. cases of extended area assessments the opposition is overwhelming and the project fails. In this case the problem of where to draw the line is probably the most difficult decision to be made. stronger we feel that the Buena Vista Assessment District should encom- pass only those properties which directly benefit from the improvements. These are the parcels numbered 14, 17, 25, 26, 32, and 33 as shown on Exhibit "A". These properties derive some or all of the benefits listed above. In many The more we study the situation the To reduce assessment district cost and distribute the total cost equitably, the City could pay half of the cost, with the other half distributed among the property owners which directly benefit from the project. EXHIBIT D (Page 3 of 3)