Baigou River Treatment Project (Gaobeidian Section)

Project Facts

Key parameters and scope of the project

项目要素 / Key Fact	内容 / Detail
Project Type	Water & Environment · Comprehensive River Treatment
Contract Value	¥122 million
Location	Gaobeidian, Hebei (east of Dingxing County), on the Haihe River Plain
Elevation	13–43 m; flat terrain, sloping gently NW–SE
Climate	Warm-temperate, semi-arid continental monsoon; prevailing SW wind
Temperature	Mean annual 11.7°C (warmest month 26°C, coldest -4.9°C)
Rainfall	Mean annual 527.2 mm, over 80% of it from June to September
Frost-free / Sunshine	186 frost-free days; 2,685.8 mean sunshine hours per year
Hydrogeology	Piedmont inclined-plain hydrogeological zone of the Taihang Mountains; aquifer floor ~20 m deep, deepening eastward
Aquifer / Water Table	Mainly gravel and sand; mean groundwater depth 18.6 m, calcium-bicarbonate type
Groundwater Flow	NW–SE, broadly following the terrain
External Access	G4 Beijing–Hong Kong–Macao Expressway, G112, Rongcheng–Wuhai Expressway, G3601, G230 and S233 provincial roads cross or ring the site; township and village roads intersect locally
Levee-top Road	Partly cement-surfaced and partly gravel on the right bank, ~3–4 m wide — adequate for equipment and material access
Scope of Works	Levee reinforcement, channel dredging, levee-top and connecting roads, traffic-safety facilities and greening
Client	Sinohydro Bureau 5

Project Detail

Location · Hydrogeology · External access · Scope of works

🔹 Project Overview

¥122 million

1. Location and Natural Conditions

The project lies east of Dingxing County, Gaobeidian, on the Haihe River Plain. The terrain is flat and slopes gently from north-west to south-east, at an elevation of 13–43 m.

The area belongs to the warm-temperate, semi-arid zone of the eastern Asian continental monsoon region, with a strongly monsoon-influenced climate: mean annual temperature 11.7°C (warmest month 26°C, coldest -4.9°C); mean annual rainfall 527.2 mm, over 80% of it between June and September; 186 frost-free days and 2,685.8 mean sunshine hours a year; winds are mostly southerly and south-westerly, with a prevailing south-westerly direction.

2. Hydrogeological Conditions

The site lies in the piedmont inclined-plain hydrogeological zone of the Taihang Mountains. The aquifer floor is about 20 m deep and deepens eastward; the water-bearing strata consist mainly of gravel and sand.

Groundwater flows roughly in line with the terrain, from north-west to south-east. It is predominantly calcium-bicarbonate type, with a mean depth of 18.6 m.

3. External Access

The surrounding area has a dense transport network: the G4 Beijing–Hong Kong–Macao Expressway, G112, the Rongcheng–Wuhai Expressway, G3601, G230 and S233 provincial roads cross or ring the project area, while township and village roads form an interlaced local network.

On the right bank the levee-top road is partly cement-surfaced and otherwise gravel, about 3–4 m wide — sufficient for early access by equipment and materials.

4. Comprehensive Treatment Scope

Delivered as a one-stop hydraulic package, the works mainly comprise levee reinforcement, channel dredging, levee-top and connecting roads, traffic-safety facilities and greening. Together they systematically improve the river’s flood-conveyance capacity and the riparian ecology, and the project has been handed over and accepted smoothly.