The engineering work was done by A. F. Pratt, resident engineer and W.

E. Eddy, a.s.sistant state highway engineer, until October 1, 1917, when it was taken over by H. C. Compton, resident engineer, under the supervision of Chas. H. Whitmore, a.s.sistant engineer.

DETAILED EXPENDITURE STATEMENT--GRADING GOBLE SECTION

Engineering $ 2,925.64 Guarding S. P. & S. Ry. tracks 527.02 Right-of-way damages 73.56 Rental on State Industrial Ry. track furnished contractor 138.00 Payments to contractor for work as follows: Clearing and grubbing $ 2,085.00 Common excavation, 20,106.5 cu. yds. at 45c 9,047.92 Intermediate excavation, 3,534.9 cu. yds.

at 70c 2,474.43 Solid rock excavation, 11,947.2 cu. yds.

at $1.15 13,739.28 12-inch reinforced concrete pipe, 560 lin.

ft. at $1.50 840.00 24-inch reinforced concrete pipe, 92 lin. ft.

at $3.30 303.60 36-inch reinforced concrete pipe, 80 lin. ft.

at $5.30 424.00 Overhaul per 100 lin. ft., 18,032 cu. yds. at 2c 360.64 Force account-- Replacing trestle for Warren Packing Co.'s plant, Goble 256.00 Borrowing approximately 400 cu. yds. rock to cover dirt fill 506.08 Removal of overhanging rock near Goble Creek bridge 6,454.32 Widening grade and building fill from Goble postoffice to Goble Creek bridge 5,853.31 Cutting off rock point to give safe sight distance around curve 47.12 Removal of slide west of Goble Creek 18.66 Placing 400 feet drain tile in quicksand 137.01 Placing timber foundation for culvert 51.05 -------- Total paid to contractor $ 42,598.42 ----------- Grand total cost $ 46,262.64

Rainier Hill Grading

On July 30, 1917, a contract was entered into with A. L. Clark of Rainier for the widening of the Rainier Hill Section, a section two and two-tenths miles in length, located just west of Rainier. This work was let under a unit price contract, but the nature of the work was such that a considerable part of it could not be fairly measured and paid for on a unit, and on this part the contractor was allowed cost plus ten per cent. The total cost of this improvement was $6,350.61. A detailed cost statement follows:

DETAILED EXPENDITURE STATEMENT--GRADING--RAINIER HILL SECTION

Engineering $ 468.38 Construction-- Common excavation, 1,925 cu. yds. at 30c $ 577.50 Intermediate excavation, 1,071.9 cu. yds. at 48c 514.51 Solid rock excavation, 1,039.7 cu. yds. at $1.25 1,299.62 Overhaul per 100 lin. ft., 905 cu. yds. at 3c 27.15 12-inch corrugated iron pipe, 228 lin. ft. at $1.00 228.00 Force account-- Excavation for cribbing and placing rip-rap 61.93 8-foot extension to 36-inch culvert 54.63 Widening old roadbed, removal of slides and general improvement work not subject to measurement 3,082.56 Culvert pipe furnished by State 36.33 --------- 5,882.23 ---------- Total cost $6,350.61

Beaver Valley Grading

Before the Columbia River Highway through Beaver Creek Canyon between Delena and Inglis was opened for traffic in July, 1918, in order to reach Clatskanie from Delena, it was necessary to travel over a narrow, dangerous, earth and corduroy road, either by way of Maygar and Quincy or through the hills about eight miles into Clatskanie. Both of these roads were pa.s.sable for autos only about three months during the dry season.

The grading of this section was partly completed by the County under supervision of Mr. Bowlby, State Highway Engineer in 1914. This section being a very important link in the Columbia River Highway and no funds being available from County or State funds during 1915 or 1916, S.

Benson decided to advance the necessary funds to make this section pa.s.sable. About four miles of grading was completed between Inglis and Delena, leaving only the building of bridges to open this section. This work was later macadamized by the State.

The engineering work was done by A. K. Grondahl.

A bill was pa.s.sed by the 1917 Legislature refunding to Mr. Benson $20,978.22 which is a large portion of the amount expended by him.

COST STATEMENT

Clearing and grubbing $ 1,265.80 Grading--labor and teams 17,124.07 Explosives 2,275.31 Pipe culverts 313.04 ---------- Total $20,978.22

Prescott Hill Section

This section of the highway was built along the steep hillside, several slides having occurred narrowing the roadbed in some places to about eight feet and making it very dangerous, it was necessary to build several retaining walls, half viaducts and guard fences.

This was done by Oscar Lindstrom on a basis of cost plus ten per cent.

A half-viaduct seventy-five feet in length was built containing fifty-three cubic yards of concrete and 4,100 pounds reinforcing steel, with standard bridge railing for guard fence.

Two hundred and fourteen linear feet of rubble masonry walls were built on a slope of three-fourths to one, and standard bridge railing placed on top for guard fence. These walls contain 438 cubic yards of rock.

A reinforced concrete crib forty-one feet long, fifteen feet high and seven feet wide was built and filled with large rock. The members were cast on the dock in Rainier and hauled to the location. A reinforced concrete slab on solid earth foundation was used for footing, on the required angle to give the crib a batter of one-fourth to one.

The total cost of the Prescott Hill improvement was $9,039.86.

Goble Creek Bridge

A ninety-foot reinforced concrete bridge was built over Goble Creek on the Columbia River Highway about one-half mile east of Goble. This bridge has a pile foundation which was put in by the Warren Construction Company on a cost plus basis for $1,583.32. The superstructure was built by Lindstrom and Fiegeson on a unit price basis. The cost of the structure complete was $5,907.14.

The engineering work in connection with this work was handled by H. C.

Compton, resident engineer, on the Goble Section, and the inspection of the placement of steel and pouring of concrete was in charge of L. M.

Huggins.

COST STATEMENT--GOBLE CREEK BRIDGE

Engineering $ 77.47 Construction-- Cla.s.s A concrete, 135 cu. yds. at $18.40 $2,447.20 Reinforcing steel, 17,925 lbs. at 7c 1,344.38 Concrete hand rail, 186 lin. ft. at $1.75 325.50 Construction of cement shed and unloading cement 129.27 Pile foundation (force account) 1,583.32 --------- Total construction cost 5,829.67 --------- Grand total cost of bridge $5,907.14

Beaver Creek Bridges

For a considerable distance between Rainier and Clatskanie the Columbia River Highway follows Beaver Creek, crossing the creek in many places.

To replace a number of temporary wooden structures and to provide bridges at every crossing, the highway department in 1917 and 1918 constructed nine reinforced concrete bridges across this stream. The spans of these structures vary from thirty to 105 feet, there being one thirty-foot, one fifty-foot, two sixty-foot, four seventy-foot and one 105-foot spans in all.

The thirty-foot span structure was built by L. O. Herrold of Salem, on a cost plus ten per cent basis and cost $3,600.00.

The other eight structures were built by L. O. Herrold of Salem, on a unit price basis, the cost of the eight being $32,000.00.

Graham Creek Culvert

A double 6x6 foot reinforced concrete box culvert was built on the Columbia River Highway to provide pa.s.sage for Graham Creek near Marshland. This culvert was built with State forces. It contains fifty cubic yards of concrete and cost $804.49.

Survey--Columbia City to Scappoose

A survey was made between Scappoose and McBride a distance of eleven and two-tenths miles. This survey follows the S. P. & S. Ry. on the south side the entire distance and is shorter than the present traveled road by about one mile, and also does away with six grade crossings. While most of the roadbed will be entirely new work, it will not be of heavy construction, the country being comparatively flat. Between Scappoose and St. Helens the material is mostly earth. Between St. Helens and McBride the material is mostly rock.

[Ill.u.s.tration: ONE OF NINE REINFORCED CONCRETE BRIDGES IN THE BEAVER CREEK VALLEY, COLUMBIA COUNTY, ON THE COLUMBIA RIVER HIGHWAY BETWEEN RAINIER AND CLATSKANIE. ALL BUILT IN 1917 AND 1918]

Two bridges of thirty foot spans or more are needed, also several box culverts and pipe culverts.

The survey from Scappoose to St. Helens was made by P. W. Marx; from St.

Helens to McBride by H. C. Compton.

COOS COUNTY

The work of the Highway Department in Coos County consisted entirely in a.s.sistance given the County in the making of surveys and the engineering of construction work done under the County's bond issue of $362,000.00.