Nhung cay cau gian rat kho hieu cua PMU 18

Co nhung cay cau do PMU 18 lam chu dau tu tai DBSCL da "gian" mot cach rat lang phi kho hieu: tu 30m, kinh phi 1,4 ty dong "gian" ra gan 100m, kinh phi hon 10 ty dong; tu 99,2m "gian" thanh 148,4 m; tu 60,2 m thanh 100,7 m; tu 84,2 m thanh 133,2 m

Thong tin bat cap ve cay cau Long Binh - Tien Giang nam trong du an xay dung 37 cay cau giao thong nong thon tai DBSCL do PMU 18 lam chu dau tu.

Dau tien, theo de nghi cua dia phuong, cay cau dai 30 m, tinh khong thong thuyen 2,5 m va kinh phi du kien khoang 1,4 ty dong. Tuy nhien, theo quyet dinh phe duyet cua Bo GTVT thi cay cau duoc nang len quy mo dai 37,19 m, voi kinh phi xay dung len den 13,152 ty dong.

Nhung do van chua phai la con so cuoi cung, vi the "de xu ly nen dat yeu o hai dau cau", PMU 18 tiep tuc dieu chinh chieu dai cua cau tu 37,19 m len 60 m roi sau do lai giam xuong con 50,2 m.

Tiep tuc hanh trinh tim kiem "nhung chiec cau lam ngheo dat nuoc" nhu vay, ngay 20/5, chung toi den cau Tra Tan nam tren quoc lo 864 (xa Long Trung, huyen Cao Lay, Tien Giang) va cung chung kien canh tuong tu .

Chung toi cung da den xem mot cong trinh khac do PMU 18 lam chu dau tu la cau Ranh Tong tren quoc lo 57 (thuoc xa A Dinh, huyen Mo Cay, Ben Tre). Cau nay cung duoc "keo gian" ra tu chieu dai 82,28m thanh 99,2m nhung khong qua dang vi do tinh khong thong thuyen van giu 3,5m trong khi con song rong chung 60m.

Chinh tu cau nay moi thay su vo ly cua hai cau Tra Tan va Long Binh (Tien Giang): kenh nho, rach cun, it hoac khong co tau thuyen qua lai, nhung vi muc dich nao do lai xay cau cao toi 5,5m khien cho nguoi dan qua cau het suc vat va!.

Cung giong nhu cay cau Long Binh, ngay 11/2/2000, UBND tinh Tien Giang co van ban de nghi Bo GTVT xay dung cau Tra Lan voi thiet ke chieu dai 90 m, tinh khong thong thuyen 3,5 m va chi phi du kien la 4.050 ty dong.

Nhung theo quyet dinh phe duyet cua Bo GTVT (do Thu truong Nguyen Viet Tien ky) thi cau Tra Tan dai 58,2 m, tinh khong thong thuyen 4,5 m voi kinh phi 19,153 ty dong. Ngay 5/6/2001, sau khi dia phuong da lam xong viec kiem ke, ap gia den bu cho cac ho dan bi anh huong thi PMU 18 lai thay doi thiet ke ky thuat: Cau dai 58,2m lai duoc keo gian ra thanh 82,28 m va dia phuong lai phai tiep tuc kiem ke den bu, giai phong mat bang. Chua het den ngay 25/2/2002, PMU 18 lai co cong van ban yeu cau giai phong mat bang duong tranh, cau tam va san bai tap ket phuc vu thi cong. Lai cam moc, gia den bu, cong viec cu lap di lap lai.

Dang luu y nhat la ngay 19/12/2001, Thu truong Nguyen Viet Tien luc do lai ky ket quyet dinh so 4357/ QD-GTVT "phe duyet dieu chinh dau tu xay dung 37 cau giao thong nong thon thuoc DBSCL". Theo do, vi tri quy mo va tieu chuan ky thuat van ghi nguyen theo quyet dinh 3581. Chi thay doi: tu thiet ke ban dau dai 49,74m bi keo gia ra thanh 73,82m.

Cau Vam Dinh Ca Mau tu 70,4 m len 101,2 m. Cau Vam Sang Thi Doi (Kien Giang) tu 82,28 m len 99,2 m. Cau Long My (Can Tho) tu 99,2 m bi keo gian ra gan gap doi, thanh 175,3m. Cau Thoa Giang (An Giang) tu 70,4m len 84,28m va cau Hoa Tinh (Vinh Long) tu 70,4m len 99,2m...

Cung theo quyet dinh dieu chinh noi tren thi o nhom 2 (gom 17 cau) "phai xu ly keo dai nhip de tranh dap cao duong dan hai dau cau tren nen dat yeu" nhu Cau Saintard (Soc Trang) tu 99,2 m len 148,4 m.Cau nga tu Cay Duong (Can Tho) tu 60,2 m len 100,7 m; cau Soc Triet (An Giang) tu 84,2 len 133,2m; cau Kenh Tu (Dong Thap) tu 90,2m len 140,2m; cau Huong My (Ben Tre) tu 30,1 m len 121,1 m va cau My Hoa (Vinh Long) tu 90,2 m len 196,4 m.

Va duong nhien, khi ket cau thay doi thi tong muc dau tu cung phai thay doi, vi trong quy trinh thi cong hau het cac thiet ke cau deu phai dieu chinh va dieu chinh nhieu lan. Nhung con so cuoi cung la bao nhieu? Khi duoc hoi, khong co quan nao o dia phuong tra loi duoc vi PMU 18 chi giao cho tinh thuc hien viec giai phong mat bang. Cac cong viec khac deu do PMU 18 thuc hien mot cua khep kin!

(theo TN)