00714968

Component

http://onlinepubs.trb.org...trr/1995/1498/1498-013.pdf

https://scholar.google.co...umel&publication_year=1995

Stream degradation has resulted in significant damage to rural roads and bridges in several areas of the United States. Western Iowa is one region that has been severely affected. In the beginning of the 20th century, many streams throughout Iowa were channelized to reduce flooding and to open more land to farming. Channel straightening accomplished its goal, but led to greater stream flow velocities, causing degradation on stream channels. This widening and deepening of streams resulted in damage to rural roads and bridges. This study evaluates the effects of stream degradation on county bridges and rural travel patterns in western Iowa. A conceptual model for measuring the benefits and costs of reconstructing, maintaining, or closing county bridges is presented, and a budget constraint model is constructed to show how limited funds might be distributed among various bridge projects. This model will be compared with the benefit-cost analysis based on net benefits and the benefit-cost ratio method of allocating funds.

This paper appears in Transportation Research Record No. 1498, Transportation Finance, Training, Strategic Management, and Economic Analysis. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01399826

English

p. 82-91

1995

Transportation Research Record

0309061628

References (18) ; Tables (5)

Abandonment; Benefit cost analysis; Bridges; Budgeting; Channels (Waterways); Constraints; Loss and damage; Maintenance; Mathematical models; Reconstruction; Rural highways; Streams

Bridge maintenance; Damages; Degradation; Fund allocations; Stream channels

Iowa

Bridges and other structures; Economics; Finance; Highways; Maintenance and Preservation; Society; I10: Economics and Administration

TRIS, TRB

Dec 21 1995 12:00AM

• ALLOCATING POLLUTION COSTS USING NOISE EQUIVALENCY FACTORS
• AM/PM CONGESTION PRICING WITH A SINGLE TOLL PLAZA
• AN OVERVIEW OF THE RUSSIAN ROAD FINANCING SYSTEM
• ECONOMIC FEASIBILITY AND RELATED ISSUES OF HIGHWAY SHOULDER RUMBLE STRIPS
• FACILITATING TRANSPORTATION AGENCY MANAGEMENT THROUGH PERFORMANCE MEASUREMENT: THE NYSDOT EXPERIENCE WITH THE "MANAGEMENT PERFORMANCE INDICATORS" REPORT
• HIGHWAY USE TAX ALTERNATIVES FOR HEAVY TRUCKS IN OREGON
• IMPLICATIONS OF COMPREHENSIVE PEACE ON THE MIDDLE EAST'S TRANSPORTATION SECTOR
• MODEL IMPROVEMENTS FOR EVALUATING PRICING STRATEGIES
• ROAD TRANSPORT IN FRANCE: ITS BALANCE ACCOUNT FOR PUBLIC FINANCE
• SOCIOECONOMIC CONSIDERATIONS OF ROAD IMPACT FEES
• STRATEGIC PLANNING, TOTAL QUALITY AND PERFORMANCE MEASUREMENT: A QUALITY DIRECTOR'S VIEW
• SUCCESSION PLANNING AT THE STATE DOT LEVEL
• TOLL REVENUE AND TRAFFIC STUDY OF HIGHWAY 407 IN TORONTO
• TRANSPORTATION PLANNING EDUCATION IN URBAN AND REGIONAL PLANNING GRADUATE PROGRAMS