Att_1_SOW_Rev_4_10.pdf

PDF 2 MB Posted Apr 10, 2018

Attached to: FRP Truss Deck Trail Bridge Federal contract opportunity
Solicitation number: 140P8418Q0029
Issued by: Department of the Interior National Park Service

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SOW Rev 1

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Att_1_SOW.pdf	PDF	Apr 4, 2018
Att_2_Exp_&_Past_Perf.pdf	PDF	Apr 4, 2018

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RFQ No. 140P8418Q0029 FRP Bridge for Redwood National & State Parks

Att 1 ‐ STATEMENT OF WORK Revised April 10, 2018

I. Background:

The

Bond

Creek

Bridge

site

located

Orick,

Humboldt

Co,

CA,

Redwood

National

Park.

The

old

Bond

Creek

bridge

has

been

demolished

and

removed

from

the

site.

consisted

two

(2)

independent,

simply

supported

spans

unequal

length,

supported

three

(3)

concrete

abutments.

Span

No.

feet

wide

foot

long.

Span

No.

foot

wide

foot‐3

inch

long.

The

original

deck

surface

was

all

the

same

finished

grade,

the

under

deck

structures

for

each

span

were

different

depths,

and

therefore

the

abutments

are

different

heights.

Span

No.

was

two

inch

wide

foot

deep

Glu‐lam

stringers.

Span

No.

was

three

inch

wide

inch

deep

pressure

treated

lumber

stringers.

See

the

attached

sketches

for

the

existing

dimensions

the

abutments.

The

intention

this

bridge

used

for

pedestrian

crossing

and

occasional

use

for

heavy

motorized

trail

maintenance

equipment

access.

The

bridge

must

withstand

maximum

vehicle

dead

load

10,000.

II. Description

work:

This

acquisition

shall

purchase

and

ship

two

replacement

bridge

substructures

pre‐

engineered

and

pre‐fabricated

span

the

existing

abutments.

All

structural

systems

shall

below

the

decking

and

supported

the

abutments.

Decking

shall

the

same

level,

with

gap

greater

than

½‐inch,

where

the

two

spans

adjoin.

Structural

components

shall

made

pultruded

fiber

reinforced

plastic

(FRP)

components.

All

fasteners

and

hardware

shall

Hot

Dipped

Galvanized

and/or

Stainless

Steel.

Provide

inch

wide

non‐slip,

heavy

duty

FRP

materials

for

decking

sufficient

thickness

meet

load

requirements,

pre‐drilled

for

the

use

self‐tapping

screws

sufficient

number

and

placement

for

secure

attachment.

These

planks

will

have

½”

gaps

in‐between

when

secured

the

sub‐structures

provide

for

water

run‐off

and

reduce

debris

accumulation.

The

design

and

fabrication

shall

simple

manner

such

that

will

allow

disassembly

for

shipping,

and

allow

for

the

park

manually

manipulate

and

transport

bridge

components

the

trail

bridge

site

for

re‐assembly

manual

labor

crews,

highline

rigging

and

hand

tools.

component

shall

longer

than

feet,

for

both

Span

No.

and

Span

No.

accommodate

restrictive

terrain

and

allow

moving

components

manual

labor

crews.

Engineering

design

shall

determine

the

means

and

methods

for

connection

the

existing

concrete

abutments.

This

work

does

NOT

include

posts

and

rails

and

associated

hardware.

However,

the

design

should

include

calculations

support

the

handrail

connections

and

attachments

the

structure

(200

lbs.

inches

tall).

The

government

shall

furnish

materials

and

install

the

handrails

and

posts. The

NPS

will

furnish

and

install

containment

structures

for

gravel

and

soil

access

ramps

finished

deck

surface.

preferable

that

the

design

mounting

clips/connecting

components

attach

structures

existing

concrete

footings,

utilize

existing

anchor

bolt

and

through

bolt

hole

locations.

(See

diagrams

dimensions

existing

concrete

footings

with

fastening

locations

and

dimensions

the

footings

designed

for

the

original

bridge

structures.)

RFQ No. 140P8418Q0029 FRP Bridge for Redwood National & State Parks

A. Engineering

Requirements

Each

bridge

structure

shall

designed

and

stamped

professional

structural

engineer

registered

the

State

California.

Include

all

applicable

codes

and

design

criteria

(such

as,

not

limited

live

load,

dead

load,

wind

loads,

seismic

loads,

etc.)

B. Design

Criteria

1. Design

each

span

separately.

The

short

span

(Span

No.

shall

utilize

simply

supported

FRP

beam

system

(minimum

beams)

sufficient

carry

loads,

support

FRP

decking

system,

and

allow

for

the

attachment

park

installed

removable

hand

rail

systems.

The

long

span

(Span

No.

shall

utilize

FRP

components

under‐deck

structure

comprised

open

web

“space

frame”

structural

assembly

similar,

allow

for

complete

breakdown

and

reassembly

the

bridge

site.

This

shall

designed

maximum

height

foot

above

bearing

locations

footings.

The bridge must withstand a maximum vehicle dead load of 10,000 lbs.

Minimum design for vehicle load – 10,000 lbs.

Minimum design for pedestrian Live load – 85 PSF.

Deck width shall be 4 feet clear from edge to edge, inside hand railing assembly.

III. Submittals:

A. Shop

Drawings:

Provide

shop

drawings

for

review

and

acceptance.

Provide

design

criteria,

component

dimensions,

layout,

assembly

instructions

and

stamp.

B. Spare

Parts:

Provide

(2)

sets

spare

parts

for

each

type

fastener

hardware

and

spare

deck

boards.

C. Warranty:

Provide manufacturer warranty for materials.

IV. Quality	Control:
Manufacturer	shall	fabricate	and	assemble	the	bridge	structures	to	verify	assembly,
component	size/type	and	fit	are	accurate.

Disassembly, itemize and label components, develop and include assembly instructions for delivery.

V. Shipping

and

Delivery:

Disassemble

and

ship

all

materials,

fasteners,

etc.

Redwood

National

Park

North

Operations

Center,

500

Aubell

Lane,

Crescent

City,

95531.

Footing B

Footing C

Footing A

Bond Creek

Photos of existing Bond Creek Bridge Footings.

Footing A

Footing C

Bond Creek

Footing A

Angle iron for mounting failed glulam - to be removed

Footing C Through Bolt Holes

Anchor Bolt - Cleaned

Anchor Bolt o f

Att 1 SOW Rev 4_10.pdf

Pages from Att 1 SOW.pdf

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