Issue Feature

2006 Exclusive Bridge Inventory

Better Bridges Articles

From the November 2006 issue of Better Roads Magazine

Better Roads Staff

The FHWA, in consultation with the states, has assigned a sufficiency rating SR to each bridge (20 feet or more) inventoried. Formula SR rating factors are as outlined in the current Recording and Coding Guide for Structures Inventory and Appraisal SI&A of the Nations Bridges.

Click here for pdf version of the 2006 bridge inventory.

Other Years:

• 2005 Bridge Inventory
• 2004 Bridge Inventory
• 2003 Bridge Inventory
• 2002 Bridge Inventory
• 2001 Bridge Inventory
• 2000 Bridge Inventory

Exclusive Bridge Trends Map included in the November 2006 Better Roads Magazine.  Sponsored by Contech Bridge Solutions.

Per the FHWA: "An SD bridge is one that (1) has been restricted to light vehicles only, (2) is closed, or (3) requires immediate rehabilitation to remain open. An FO bridge is one in which the deck geometry, load carrying capacity (comparison of the original design load to the State legal load), clearance, or approach roadway alignment no longer meets the usual criteria for the system of which it is an integral part." See also http://www.fhwa.dot.gov/legsregs/directives/fapg/0650dsup.htm 

Our thanks to all the state highway engineers for their continuing cooperation and special effort to provide current data through October 2006.

Click here for our feature story

State	Total Interstate & State Bridges	Total *SD/FO	%	Total City/ County/ Township Bridges	Total *SD/FO	%	Total All Bridges	Combined Total *SD/FO	%
Alabama	5,673	1,192	21%	10,039	2,727	27%	15,712	3,919	25%
Alaska	891	183	21%	138	52	38%	1,029	235	23%
Arizona	4,630	161	3%	2,354	223	9%	6,984	384	5%
Arkansas	7,132	1,170	16%	5,227	1,579	30%	12,359	2,749	22%
California	12,482	1,751	14%	12,201	2,590	21%	24,683	4,341	18%
Colorado	3,750	479	13%	4,754	623	13%	8,504	1,102	13%
Connecticut	2,919	1,015	35%	1,232	404	33%	4,151	1,419	34%
Delaware	839	136	16%	7	4	57%	846	140	17%
DC	214	88	41%	0	0	0%	214	88	41%
Florida	6,324	835	13%	4,802	1,204	25%	11,126	2,039	18%
Georgia	5,931	890	15%	8,385	2,023	24%	14,316	2,913	20%
Hawaii	758	275	36%	398	151	38%	1,156	426	37%
Idaho	1,267	287	23%	2,286	385	17%	3,553	672	19%
Illinois	8,085	1,633	20%	18,018	2,950	16%	26,103	4,583	18%
Indiana	5,676	813	14%	12,732	3,206	25%	18,408	4,019	22%
Iowa	3,973	555	14%	20,614	6,099	30%	24,587	6,654	27%
Kansas	5,318	795	15%	20,509	4,641	23%	25,827	5,436	21%
Kentucky	8,814	2,576	29%	4,728	1,683	36%	13,542	4,259	31%
Louisiana	7,889	2,207