Alliance Town Center South Ponds/Regional H&H Modeling
ALLIANCE TOWN CENTER SOUTH PONDS/REGIONAL H&H MODELING
North Fort Worth, Texas
City of Fort Worth and Hillwood
The southern portion of Alliance Town Center drains to two culvert crossings under North Riverside Drive. The existing pond for the north outfall (Sagestone Pond) was modified to be an amenity and re-use pond, including the addition of a low weir upstream of the existing multi-box culvert outlet structure. This area, dedicated as Prairie Vista Park, creates a landscaped amenity and community open space/park. Peloton developed new grading to enlarge Sagestone Pond, forming a more aesthetic shape and adding variability to the slopes.
The ponds for the south outfall are being improved from an appearance and amenity standpoint as the area continues to develop. This facility consists of two interconnected regional ponds, currently connected by a channel but later to be divided by an entrance road and connected by a box culvert. An unsteady-state HEC-RAS model was necessary to determine the interaction of the weir and existing outlet on Sagestone Pond to the north, and to size the connecting structure on the south pond. This approach provided sound designs for both facilities, including the receiving stream (Whites Branch), saving time and money by eliminating the back-and-forth procedure required by a more conventional steady-state approach.
- H&H modeling of Whites Branch
- Interconnected ponds
- Culvert crossings/channel design
- Low weir structure