CLIN_-_003_RFI_00009-SanitaryManholes.pdf

USAID/EHIP

New Health Center Construction Task Order 8, Combined RFI Log

Durame Site 202 Batu Site 251 Gimbichu Site 208 Arsi Negele Site 277 Waka Site 213 Meki Site 290

RFI No. Date Rec'd Item No. Question TT Response Response Date Follow-up

Arsi Negle 00009 Batu 00013

Gimbichu 00015 Durame 00009

Waka 00013

30-Apr-14 1 The Manhole Detail calls for the sanitary manholes to be circularo We re quest your approval to change the manholes to square as approved for TO#3 sites. (P lease refer to attached Submittal approval for square manholes for TO#3). The external edges will be properly chamfered to make a circular edge.

Solution is acceptable.

Formwork and workmanship should be as per spec.

Make rounded fillet at all 90 degree (square) interior corners of the manhole to 40cm above the crown of the pipe to prevent accumulation of debris. See attached sketch.

12-May-14

P:\01298\127-01298-11002\Construction\RFIs\TO#8 - Combined RFI's\RFI Log TO#8 COMBINED

QA review comments on Shop Drawing Submittals Task Order 3, Combined QA Review Log Wacho Site 002 Udasa Site 008 Mehal Jarso Site 014 Sibiya Site 015

Site Name Transmittal No.

Date Rec'd by

TT

Spec Section Description New Sub Resub IRD review TT Evaluation

Date Responded TT Additional comments beyond what IRD identified

00111 2‐Jul‐13 N/A‐Manholes for Sewer Lines

Drawings for reinforced cast‐in‐situ C‐25 concrete Manholes x A B 3‐Jul‐13

1. Please see the notes on the drawings. 2.

Please use 890 square size for circular manhole of 1000mm dia. 3. Use minimum slope 3% inside the manhole. 4. Put section line on one of the section drawing. 5.Use concrete cover min 50mm. 6. Formwork and workmanship should be as per spec.