USGS


Table 2. Locations where ditches or excessive road grading has resulted in allowing water to merge into adjacent creeks [Locations are shown as red arrows on figure 4; na, not applicable]

Flow arrow number

Rank

Type

Culvert size, in inches

Restoration options

1

2

Road

na

Raise roadbed approximately 1 to 2 ft to conform to preexisting land topography.

2

3

Ditch

na

Fill ditch between sites 12 and 14.

3

2

Road

na

Raise roadbed approximately 1 to 2 ft between site 43 and road GG to conform to preexisting land topography.

4

3

Road

na

Restore natural ßow at sites 52, 54 and 56.

5

2

Road

na

Restore natural ßow at site 87, raise roadbed approximately 1 to 2 ft between sites 77 and 87 to conform to preexisting land topography. Fill small ditch.

6

3

Ditch

na

Fill ditch that runs parallel to road J.

7

2

Road

na

Raise roadbed approximately 3 ft between site 107 and road F to conform to preexisting land topography

8

1

Ditch

24

Remove culvert and ll ditch.

9

1

Ditch

24

Remove culvert from road G, add ll to block ßow, and fill borrow pits east of road 6.

10

2

Road

na

Raise roadbed approximately 1 to 2 ft between site 143 and road D to conform to preexisting land topography.

11

na

Road

na

Restore natural ßow at site 148.

12

2

Road

na

Restore natural flow at sites 157 and 161, raise roadbed approximately 1 ft between sites 157 and 161 to conform to pre-existing land topography.

13

na

Road

na

Restore natural ßow at site 171.

14

na

Road

na

Restore natural ßow at site 177.

15

na

Road

na

Restore natural ßow at site 194.

16

na

Road

na

Restore natural ßow at site 206.

17

na

Road

na

Restore natural ßow at sites 214, 215, 219, and 223.

18

2

Road

na

Restore natural flow at sites 217 and 224, raise roadbed approximately 2 to 3 ft between sites 217 and 224.

19

na

Road

na

Restore natural ßow at site 230.

20

1

Ditch

24

Remove culvert from road B and ll ditch.

21

1

Ditch

24

Remove culvert from road B and ll ditch.

22

1

Ditch

36

Remove culvert from road B and fill ditch or keep gates on culvert closed.

23

1

Ditch

24

Remove culvert from road B and ll ditch.

24

1

Ditch

24

Remove culvert from Insulator Road and ll ditch.

25

3

Ditch

24

Remove culvert and ll small ditch.

 



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