Non-Federal costs. The investment required of local interests in construction of the authorized project is estimated at $976,000, broken down as follows:

It is estimated that the average annual expenditure for maintenance, operation, and replacement pertinent to the new construction will total $11,400. Status of local cooperation.-The City of Freeport, acting through its officials, is the responsible local cooperation agency. The project, including local cooperation requirements, has been discussed with representatives of local interests. Officials of Freeport have provided a letter stating their approval of the proposed works and their willingness to furnish the necessary local cooperation. Formal assurances will be requested when the General Design Memorandum is completed.

Comparison of Federal cost estimates.-The current Federal cost estimate of $4,270,000 is an increase of $1,055,000 over the latest estimate ($3,215,000). submitted to Congress. This change includes increases of $925,000 in construction costs based on more detailed plans and estimates, $40,000 for increased engineering and design costs and $90,000 in supervision and administration based on the increase in construction costs.

Summary construction program (PB-1), fiscal years 1967 and 1968

Mr. BOLAND. $250,000 is budgeted to continue construction of the Freeport, Ill., local protection project. The cost of this project has increased $1,055,000 since last year, about one-third, and the benefitnst ratio has slipped from 1.4 to 1 to only 1.1 to 1. What caused the price increase and what is the status of the project?

General DODGE. Practically all of the increase is based on more detailed plans and estimates. Some of the more significant items are as follows: One is a railroad bridge and track realinement for $145,000. Added clearing, grubbing, and compaction of material from the channel on the levees, $169,000; changes in the channel proper due to refine

77-919-67-pt. 1- 9

ment of quantities, $175,000; addition of a diversion structure, $190,000; addition of a drop structure, $96,000; a new sewage effluent plant added, $150,000; a gravity outlet, $116,000. Those are the major items.

The status of it is that the plans and specifications for the diversion channel will be completed in June 1967.

ENGINEERING AND DESIGN AND SUPERVISION AND ADMINISTRATION

COSTS

Mr. BOLAND. It is noted that on several of the projects there has been an increase since last year on the cost of engineering and design and supervision and administration based on "reanalysis require

ments."

Specifically, what are the bases for these overhead increases?

General DODGE. Since we are not referring to specific projects, sir, in all cases we estimate what our engineering and design will be in the project document. These estimates are annually adjusted to reflect price level changes until we prepare our first design memorandum and that is the first detailed analysis of these costs. Then as we go along up to the point where we have plans and specifications, we again make another analysis. As we get into construction, if there are modifications to the contract, new facilities to be added, they require additional engineering. Each time we change the design, it requires more engineering and that overall statement, reanalysis of the requirement, provides for a series of changes to the requirement.

Mr. BOLAND. The staff informs me that there appears to be more changes with respect to this division on design than other divisions and with a resultant increase in cost. We will find out more about this as we move through the budget.

DES MOINES, IOWA

We will insert pages 204 to 209.

(The pages follow:)

DES MOINES, IOWA

(Continuing)

Location.-Des Moines, the capital of the state of Iowa, is located at the confluence of the Des Moines and Raccoon Rivers in Polk County, Iowa.

Authorization.-1944 and 1965 Flood Control Acts.

Benefit-cost ratio.-1.4 to 1.

1 In addition, following the flood of 1903, the city of Des Moines constructed approximately 5.5 miles of levee along the Des Moines and Raccoon Rivers. Portions of this levee system were raised and strengthened and additional levees constructed following the floods of 1947 and 1954. The accumulated expenditures by the city for work directly related to this project are estimated to be in excess of $400,000.

PHYSICAL DATA

Relocations: Railroads, raise 1,900 feet of Des Moines Union Railway industrial tracks and "Y” a maximum of four feet ($44,000).

Closure Structures: 1 Gated, 1 Panel and 30 Sandbag.

JUSTIFICATION

The project, acting in conjunction with the authorized Saylorville Reservoir, will provide a very high degree of flood protection for the city of Des Moines (population 209,000-1960 Census), against Des Moines River floods. Extensive transportation, industrial, commercial, public, and residential development exist in the flood plain area along the Des Moines River throughout the city. The developments have been seriously affected during past major floods.

Damages resulting from the flood of June 1947 amounted to $850,000 and under present conditions and at current prices this damage would amount to $2,212,000. During this flood, 500 persons were displaced from their homes. The June 1954 flood caused damages in the amount of $1,193,000 and forced 1,800 persons to evacuate their homes. With current prices and development, these damages would be $2,021,000. During each of the floods, emergency protective works were built by local interests in order to prevent failure of existing local works. At the time of the 1954 flood, city forces, National Guard troops and hundreds of volunteer helpers performed flood emergency construction and made other flood preparations at an estimated cost of $306,000. These flood-fighting activities prevented failure of a levee structure which had been breached at the time of the June 1947 flood.

The most recent flood occurred in April 1965 and caused damages which totaled $800,000. At this time, city officials expended $130,000 in emergency flood-fighting efforts in bolstering the existing protective works. These efforts prevented failure or overtopping of the local protective dikes. In addition to the money spent by the city, an estimated $345,000 in damages was caused to city streets, parks, sewers and other property. Subsequent to the flood, the Sixth Avenue bridge over Des Moines River collapsed. The estimated value of this bridge amounted to $325,000. A consulting engineering firm retained by the City concluded that flood waters had undermined the bridge abutment, thus causing the failure. A new bridge at this location is under construction.

Construction of the project would prevent recurrence of these damages. Average annual flood control benefits for the project are estimated at $188,300. Fiscal year 1968.-The requested amount of $1,300,00 will be applied toContinue construction of levees, reach 3. Continue construction of levees, reach 4. Initiate construction of levees, reach 5_. Engineering and design____

Supervision and administration___.

Total

$750,000 400, 000 50,000 5,000 95, 000

1,300, 000

Funds requested for Fiscal Year 1968 are based on an economical rate of progress with project completion scheduled for June 1969.

Non-Federal costs.-The investment required of local interests in construction of the authorized project is estimated at $311,000 broken down as follows: Lands and damages.. Relocations

Total

$290, 000 21,000

311, 000

Local interests are required to maintain and operate the project upon completion. It is estimated that the average annual expenditure for maintenance and operation will total $10,000.

In addition, the City of Des Moines, following the flood of 1903, constructed the original system of levees to protect portions of the riverfront from overflow. Additional work, accomplished jointly by the city and the WPA in 1936-38 on riverwalls, channel changes and dam construction was done primarily for beautification, rather than flood control. Subsequent to the floods of 1947 and 1954, the City augmented its levee system and constructed new levees in unprotected areas. The latter construction was performed by city work crews and equipment during slack periods. The accumulated amount expended by local interests for these improvements for work directly related to this project is estimated to be in excess of $400,000.

Status of local cooperation.-Assurances, executed by the City of Des Moines, were accepted by the District Engineers on June 25, 1964. Rights-of-way for

Reach No. 3 were made available on July 25, 1966. Rights-of-way on Reaches Nos. 4 and 5 are expected to be made available as required for the construction schedule.

Comparison of Federal cost estimates.—The current Federal cost estimate of $3,500,000 is an increase of $1,140,000 over the latest estimate ($2,360,000) submitted to Congress. This change includes increases of $27,000 due to higher price levels, $165,000 due to bids received, $798,000 based on more detailed planning, $30,000 additional engineering and design on levee and floodwall alignment and tie-off problems due to development in the area, and $75,000 for Supervision and Administration based on reanalysis of requirements.

Summary construction program (PB−1), fiscal years 1967 and 1968

Mr. BOLAND. $1,300,000 is budgeted to continue construction of the Des Moines, Iowa, local protection project.

It is noted on page 208 that there has been an increase in the cost of this project since last year of $1,140,000 or about 50 percent. Why has such a major increase been necessary? It should be noted there is also an increase of $690,000 for last year.

General DODGE. The increase this year is based largely on a more detailed estimate of the cost of levees and floodwalls. Price level increase was $72,000. The bids we received, on stage one, account for $165,000. We had to go to truck haul rather than scraper haul for the fill, which accounted for $402,000. Additional riprap, increased the cost $124,000.

Removal of unsuitable material in a dump area and replacement with impervious material amounted to $74,000 and miscellaneous changes totaled $154,000.

Location.-Dubuque, in Dubuque County, Iowa, is located on the right bank of the Mississippi River opposite the boundary line between the states of Illinois and Wisconsin.