Gaoa SFK dry blood DAM reconstruction

The Bureau of Land Management (BLM) has a construction requirement for all labor, materials, equipment, and supervision to repair South Fork Dry Blood Dam located in Petroleum County, approximately 14 miles north of Winnet, MT. The requirement entails the following significant tasks:

1. Dewater reservoir and construction area.
2. Excavate a portion of the existing dam embankment and foundation to remove the existing primary spillway.
3. Reconstruct the dam embankment, including:
a. Placement of compacted fill from onsite borrow sources,
b. Placement of compacted lime amended fill,
c. Placement of imported erosion protection within excavated areas of the upstream face,
d. Placement of erosion protection matting within excavated areas of the downstream face,
e. Placement and compaction of imported sand and gravel for internal filter and drain features.
4. Construct a precast concrete spillway riser for a new principal spillway.
5. Construct concrete encased, precast reinforced concrete pipe outlet conduit.
6. Construct precast concrete low-level inlet structure.
7. Construct a grouted riprap stilling basin.
8. Place road gravel surfacing along the crest of the dam.
9. Construct a temporary construction access road from Valentine Rd. to the dam embankment crest, as necessary.
10. Construct improvements to the auxiliary spillway upstream and downstream of the dam centerline.
11. Remove existing barb wire fencing and cattle guards in the vicinity of the dam.
12. Install a cattle new cattle guard on Valentine Rd. and construct a new barb wire fence.
13. Reclaim all disturbed areas, including staging areas and temporary roads. Reclamation consists of preparation of the soil for seeding but does not include seeding.