Diagram No. 6. Ellsworth Avenue extension
12. Fifth Avenue—Center Avenue Connection at Soho.—As a main thoroughfare feeding Minersville and the northern part of the Hill District, either from the South Side via the Twenty-second Street bridge, or from the Point District via Fifth Avenue or Forbes Street, a connection is needed on a reasonable gradient from Fifth Avenue to Center Avenue through the valley south of Soho hill. Such a street (Diagram No. 5) could leave Fifth Avenue at Jumonville Street, start along the location of Wyandotte Street, then curve around the nose of the hill and follow the hillside on the west of the valley; thus, by cutting away some of the recent filling at the upper end of the valley, it could reach Center Avenue at the corner of Soho Street with a uniform gradient of about 3 per cent. At present there is no way of reaching this high land on a gradient less than 7 per cent.
The new street shown on the diagram is preferred to the improvement and extension of Moultrie Street because (1) it gives a better gradient, (2) it is a more direct approach from the down town district, and (3) it leaves the bottom of the valley available for enlarging the Moultrie Street playground.[14]
A one-sided hill-street in Geneva, possessing an incidental recreative value
13. Ellsworth Avenue Extension.—As Fifth Avenue is the principal thoroughfare to Bellefield, so Ellsworth Avenue becomes its main branch or extension from Bellefield to East Liberty. This street should not end at Neville Street, as at present, but should be extended to the corner of Craig Street and Fifth Avenue. (Diagram No. 6.)
Diagram No. 7. Monongahela hillside thoroughfare—a typical section
14. Monongahela Hillside Thoroughfare.—The thoroughfare requirements from the Forbes Street artery up the Monongahela River can best be met by a hillside street, partly new and partly following existing streets, running substantially parallel to Second Avenue but along the hillside above the railroad tracks. This thoroughfare would leave Forbes Street at the bend about 1200 feet east of Brady Street, cross the little valley (which should be filled north of the new street) and extend eastward, crossing Bates Run on a viaduct, and using, where possible, parts of Lawn and Frazier Streets, to the mouth of Four Mile Run. Thence, by another viaduct, it would connect with Sylvan Avenue, on the north side of the valley, and follow this street widened to Hazelwood Avenue; by another viaduct it would cross the Flowers Avenue valley to Glenwood Avenue and follow the latter widened and partially regraded to Mansion Street. There it would bend to the northeast, cut through the plateau land to the next ravine, cross this on a viaduct and, bending southward again, descend around the nose of the hill to the Glenwood bridge. So easy a gradient can be obtained on this new street that it may reasonably be expected to carry nearly all the through traffic. With proper connections (the most important of which are described below), it will also take most of the travel to and from the residential districts lying above it to the northeast.