Specifications for Construction of Roads and Bridges in National Forests and National Parks, 1941

United States. Bureau of Public Roads, United States. Public Roads Administration

U.S. Government Printing Office, 1941 - 512 pages

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DIVISION IGENERAL REQUIREMENTS AND COVENANTS Terms of Special Significance and Abbreviations	1

Bidding Requirements and Conditions 7	7

Award and Execution of Contract_	9

Scope of Contract__	10

Control of Work Control of Material_	11

Legal Relations and Responsibility to the Public	23

Prosecution and Progress	30

Measurement and Payment	41

Steel Bridges	288

Timber Bridges	291

Log Bridges	296

Log Culverts	298

Culverts and Retaining Walls	299

Concrete Classes A B D and S	300

206A Concrete Classes XA XB XC XX XY and XS	324

Reinforcing Steel	330

DIVISION IICONSTRUCTION DETAILS 9 10 13 17 30 1234 EARTHWORK Item 20 Clearing and Grubbing Pay areas shown on plans	46

Random Clearing Pay areas limited by definition_	49

21A Random Grubbing Pay areas limited by defini tion	53

Selective Removal of Trees and Snags	57

Stripping and Storing Topsoil	58

Roadway and Drainage Excavation_	63

Unclassified Excavation for Structures	64

Borrow	67

Overhaul Stationyard basis	72

Special Overhaul of Borrow Cubicyardmile 72 basis	74

Embankment	75

Foundation Fill	80

Stone or Gravel Sheathing	81

Backfill for Structures Other than Pipe Culverts	83

Bedding and Backfill for Pipe Culverts__	85

Disposal of Surplus Material__	88

Replacing Topsoil	89

Tree Wells and Tree Root Protection	91

Item Page 38 Obliteration of Old Roadways__	94

Roadside Cleanup Wooded areas_	96

Spot Subgrade Reinforcement_	99

Subgrade Preparation of new subgrade	101

Finishing Earth Graded Roads Special finishing of new subgrade	103

Fine Grading Subgrade and Shoulders Reprepa ration of previously constructed subgrades	105

Shoulders__	107

Watering	109

Selected Borrow Base Course	110

Stabilized Soil Base Course	113

Gravel Base Course_	117

52A Crushed Gravel or Crushed Stone Base Course__	122

Telford Base Course___	127

Sledged Stone Base Course	129

Dry Choked Stone or Slag Base Course_	131

Waterbound Macadam Base Course_	134

Reconstructed Stone or Gravel Base Course__	140

Reconditioning of Used Roadbed Preparatory to bituminizing	143

Bituminous Macadam Base Course Asphalt or tar	145

Hot Bituminous Concrete Base Course__	151

SURFACE COURSES AND PAVEMENTS 100 Selected Borrow Surface Course__	163

Gravel Surface Course__	166

Crushed Gravel or Crushed Stone Surface Course	171

Bituminous Prime Coat_	176

Bituminous Tack Coat___	179

Bituminous Preservative Treatment_	181

Class A Seal Coats	189

Class A Surface Treatments	196

Class B1 Dense Graded RoadMix Surface Course	203

Class B2 Dense Graded PlantMix Surface Course__	211

Class C1 Dense Graded RoadMix Surface Course_	218

Item Page 123 Class C2 Open Graded RoadMix Surface Course	226

Class D Type D1 Mosaic Macadam Pavement Asphalt or tar	234

Class D Type D2 Three Application Macadam Pavement Asphalt or tar___	240

Class E1 Macadam Pavement PlantMix Seal Coat Asphalt or tar	247

Class E2 Type EM Four Application Macadam Pavement Emulsified asphalt _ __	261

Class F Type F1 Dense Graded PlantMix	267

Class F Type F2 Open Graded PlantMix	276

STRUCTURES	281

Concrete and Stone Masonry Bridges	283

Structural Steel	332

Treated and Untreated TimberLL	339

Dry Rubble Masonry	348

Foundation Masonry	350

Cement Rubble Masonry	353

Class B Stone Masonry	358

Class A Stone Masonry	363

Stone Masonry in Parapets	369

Stone Masonry Facing for Concrete	371

Dimensioned Masonry	374

Brick Masonry	380

Reinforced Concrete Culvert Pipe	382

Vitrified Clay Culvert Pipe	384

Cast Iron Culvert Pipe	386

Corrugated Galvanized Sheet Metal Culvert Pipe_	388

Bituminous Coated Corrugated Sheet Metal Cul vert Pipe Type 1	395

Bituminous Coated Corrugated Sheet Metal Cul vert Pipe Type 2	401

Removing Cleaning and Stockpiling or Relaying Salvaged Culvert Pipe	404

INCIDENTAL CONSTRUCTION 300 Piling	405

Loose Riprap	415

DerrickPlaced Rock Retaining Wall	416

HandLaid Rock Embankment__	418

Concrete Cribbing	419

Metal Cribbing	421

Timber and Log Cribbing	423

Underdrains___	426

Drop Inlets and Catch Basins	430

Embankment Spillways	433

Grouted Rubble Gutter	435

Concrete Curb and Combination Concrete Curb and Gutter___	437

Bituminous Gutter	440

Concrete Sidewalk	442

Brick Sidewalk	444

Bituminous Sidewalk_	447

Waterproofing	449

Dampproofing	453

Conditioning of Subfloor For bituminous wearing course	455

MineralSurfaced Asphalt Plank	456

Bronze Bearing Plates__	458

Copper Flashing	459

Blast Plates	460

RightofWay Monuments__	462

Concrete Maintenance Marker Posts	463

Timber Culvert Markers	464

Cattle Guards	465

Barbed Wire Fence	466

Gates	467

Traffic Stripe	468

Timber Guide Posts __	469

Hubhigh Wood Guardrail_	470

Furnishing and Placing Loamy Topsoil	473

Cutting Lifting and Placing Sod	474

Seeding	476

DESIGN DETAILS	485

Furrow Ditches M127422 80	487

85	508

BJON FRIBBBL 46 49 53 56 59 64 69 74 93	509

III	6

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Specifications for Construction of Roads and Bridges in National Forests and ...
United States. Bureau of Public Roads,United States. Public Roads Administration
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Common terms and phrases

A.A.S.H.O. Method amount application of bituminous approved asphaltic concrete BASIS OF PAYMENT bid bid bid price bid schedule bituminous material borrow pits broom cement Class Class A Surface cleaned coarse aggregate compacted compensation for furnishing complete the item concrete conform constitute full compensation CONSTRUCTION METHODS contract unit price contractor cover aggregate creosote oil crushed stone cubic yard Culvert Pipe determined as provided determined by A.A.S.H.O. Emulsified engineer equipment excavation feet filler finished gallonage grade gravel inches incidentals necessary item shall consist joints key aggregate layer masonry meet the requirements metal METHOD OF MEASUREMENT mixer mixing mixture mortar necessary to complete paid pavement payment shall constitute percent piles plant portland cement pounds price and payment removed roller rolling seal coat specific gravity spread square yard steel stockpiles structure subgrade surface course temperature thickness timber tion tons topsoil uniform whichever is called width windrow yardage zinc chloride

Bibliographic information

Title	Specifications for Construction of Roads and Bridges in National Forests and National Parks, 1941
Authors	United States. Bureau of Public Roads, United States. Public Roads Administration
Publisher	U.S. Government Printing Office, 1941
Original from	the University of California
Digitized	20 Feb 2009
Length	512 pages

Export Citation	BiBTeX EndNote RefMan

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