Northern Pacific Engineering Drawing: 26 Foot Prestressed Concrete, Bridge 93.2 - west Stock Road, south of Castle Rock, Washington, Line Segment 052, Milepost 93.5. Sheet 390 - 8496, undated.

Northern Pacific Engineering Drawing: 24 Foot Prestressed Concrete, Bridge 93.2 - west Stock Road, south of Castle Rock, Washington, Line Segment 052, Milepost 93.5. Sheet 390 - 8496, undated.

AFE 53373, Castle Rock, Washington, 1937. Remove 500' Track Including 2 Switches of Old Lp&N Railway, Remove Bridges 13 and 15 Over Highways 18, 29. Interstate Commerce Commission Account Number 9 Rails Cost: $2070. Series II. Lines West. Cascade Division. Other Subject Categories: Track, Track Laying and Removal

AFE 26171, Castle Rock, Washington, 1932. Agreement Granting County Easement for Under Crossing on Old Lp&N Right of Way. Interstate Commerce Commission Account Number 14 Crossings. Series A. Lines West. Other Subject Categories: Crossings, Public

AFE, Series II, Number 53373, Castle Rock, Washington, June 17, 1937, Remove Part of Longview, Portland and Northern Railway. Located in folder 'Longview'. Other subject categories: Abandonment. Initial cataloger's disposition code: M, AFE Sheet page 1, with map or other paper

AFE, Series II, Number 47848, Castle Rock, Washington, December 20, 1933, Culvert Number 10.91 (Longview, Portland and Northern Railway). Located in folder 'Longview'. Other subject categories: Grading/Ditching/Roads/Culverts. Initial cataloger's disposition code: Z, File not retained

AFE, Series II, Number 47700, Castle Rock, Washington, November 16, 1933, Fill Bridge 11.45 (Longview, Portland and Northern Railway). Located in folder 'Longview'. Other subject categories: Bridge. Initial cataloger's disposition code: Z, File not retained

AFE, Series II, Number 46970, Castle Rock, Washington, May 22, 1933, Fill Trestle 13.63 on Longview, Portland and Northern Railway. Located in folder 'Longview'. Other subject categories: Bridge. Initial cataloger's disposition code: Z, File not retained

Burlington Northern Engineering Drawing: Deck Plan, Bridge 93.3 - Ostrander Creek (formerly Northern Pacific), south of Castle Rock, Washington, Line Segment 052, Milepost 93.6. Sheet 1268 - 13, 1981.