B08_Solicitation_Attachment_11_Aucilla_Tram_Bridge_Field_Notes_and_Sketch_8_26_26_4_pgs.pdf
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- Attached to
- St. Marks NWR Aucilla Tram Road Bridge DB
- Solicitation number
- 140FC126Q0044
- Issued by
- Not on record
About this file
This document is a computation sheet containing structural survey data and field measurements for the Aucilla Tram Bridge located in Florida. The survey was conducted on August 26, 2026, by the U.S. Department of Agriculture Natural Resources Conservation Service.
The computation sheet documents detailed station and elevation measurements across the bridge structure, spanning approximately 34 feet from the west bridge deck joint (Station 0+00) to the east bridge deck joint (Station 0+34). Key structural elements include five concrete piers (Piers 1-5) supporting a wooden tram bridge deck with approximately 6-1/4 inch thickness and 12 inches of overhang beyond the beam edge. The survey records the elevation of the bridge deck top at 50.00 feet, with the existing water surface observed at elevation 44.40 feet (26 inches below Pier 3 top). Additional measurements include existing guardrail height of 2 feet 10 inches, concrete pier dimensions of approximately 12 inches × 12 inches (except Pier 3, which is a pilaster and self-supporting structure), pier heights ranging from 17-3/4 inches to approximately 54 inches clear opening spacing, and wood board spacing of 54 inches clear (excluding grooves). The bridge deck overhangs the concrete water control structure piers by approximately 2-3 inches. All measurements and calculations are documented with their respective basis (field profile sketches, station notes, or calculations) for structural analysis and engineering documentation purposes.
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Text version
Station (ft) Station Description Elevation
(ft) Elevation / Feature Dimensions / Field Notes Basis
0.0 0+00 West bridge deck joint 50.00 Bridge deck top Profile datum shown at bridge deck Field profile sketch
0.0 0+00 West bridge deck joint 49.48 Bridge deck bottom ≈ 6-1/4 in. deck thickness Field profile sketch / notes
N/A Existing guardrail 52.68 Top of existing guardrail Existing guardrail height noted as 2 ft 10 in.
1.0 0+01 West wingwall Station notes
5.5 0+05.5 Pier 1 — west edge of Pier approximately 12 in. × 12 in. Station notes
6.0 0+06 Pier 1 — centerline 46.50 Top of WCS concrete pier 54 in. clear opening spacing noted Field profile sketch
11.5 0+11.5 Pier 2 — centerline 46.58 Top of WCS concrete pier 41 in. from pier top to bridge deck top Calculated: 50.00 - 41/12
11.5 0+11.5 Pier 2 — centerline 45.10 Approx. concrete floor / pier base Pier height noted as 17-3/4 in. Calculated: 46.58 - 17.75/12
17.0 0+17 Pier 3 — centerline 46.57 Top of WCS concrete pier Existing water level noted 26 in. below pier 3 top Calculated: 44.40 + 26/12
17.0 0+17 water surface 44.40 Water surface Observed 8/26/2026 Field profile sketch
22.5 0+22.5 Pier 4 — centerline Pier approximately 12 in. × 12 in. Station notes
28.0 0+28 Pier 5 — centerline Pier approximately 12 in. × 12 in. Station notes
33.0 0+33.04 East wingwall Field note: Sta. 0+33-1/2 Station notes
34.0 0+34 East bridge deck joint Station notes
Notes:
1. Bridge deck has 12" of overhang beyond beam edge
2. bridge deck overhangs concrete water control structure piers roughly 2-3"
3. wood boards have 54" clear spacing (not including grooves)
4. Pier 3 is a pilaster and self-supporting. Its also deeper than piers 1,2,4, and 5
Aucilla Tram Bridge — Station & Elevation Log 8/26/2026 computation sheets
File details come from the government source that posted it. Updated .