| Number | Percent | |
| Total # of Bridges | 629,762 | |
| Bridges need repair or corrective action | 81,686 | 12.97% |
| Closed | 3,386 | 0.54% |
| Rated Poor by USDOT | 42,404 | 6.73% |
| Structurally Deficient | 47,803 | 7.59% |
Map
- Bridges closed or in need of repair:
- < 10%
- 10-20%
- > 20%
State-by-state Comparison
| Bridges need repair or closed | Poor condition | Structurally Deficient | ||||||
| State | Total | Need repair or corrective action | Closed | %Percent | #Number | %Percent | #Number | %Percent |
|---|---|---|---|---|---|---|---|---|
| Alabama | 16,305 | 2,601 | 207 | 17.22 | 559 | 3.43 | 949 | 5.82 |
| Alaska | 1,712 | 542 | 25 | 33.12 | 136 | 7.94 | 139 | 8.12 |
| Arizona | 8,660 | 406 | 11 | 4.82 | 95 | 1.10 | 129 | 1.49 |
| Arkansas | 13,086 | 2,397 | 38 | 18.61 | 697 | 5.33 | 812 | 6.21 |
| California | 27,008 | 3,129 | 80 | 11.88 | 1,591 | 5.89 | 1,607 | 5.95 |
| Colorado | 8,955 | 903 | 9 | 10.18 | 437 | 4.88 | 466 | 5.20 |
| Connecticut | 4,428 | 591 | 20 | 13.80 | 219 | 4.95 | 220 | 4.97 |
| Delaware | 880 | 87 | 0 | 9.89 | 11 | 1.25 | 11 | 1.25 |
| District of Columbia | 252 | 101 | 0 | 40.08 | 4 | 1.59 | 4 | 1.59 |
| Florida | 13,050 | 1,438 | 40 | 11.33 | 449 | 3.44 | 456 | 3.49 |
| Georgia | 15,556 | 1,670 | 61 | 11.13 | 239 | 1.54 | 390 | 2.51 |
| Hawaii | 1,193 | 435 | 20 | 38.14 | 80 | 6.71 | 81 | 6.79 |
| Idaho | 4,592 | 378 | 11 | 8.47 | 235 | 5.12 | 288 | 6.27 |
| Illinois | 28,018 | 2,065 | 115 | 7.78 | 2,472 | 8.82 | 2,543 | 9.08 |
| Indiana | 19,462 | 2,254 | 87 | 12.03 | 1,018 | 5.23 | 1,096 | 5.63 |
| Iowa | 23,720 | 2,428 | 360 | 11.75 | 4,558 | 19.22 | 4,656 | 19.63 |
| Kansas | 24,939 | 2,655 | 4 | 10.66 | 1,305 | 5.23 | 1,962 | 7.87 |
| Kentucky | 14,873 | 3,107 | 63 | 21.31 | 1,012 | 6.80 | 1,062 | 7.14 |
| Louisiana | 12,725 | 2,465 | 128 | 20.38 | 1,545 | 12.14 | 1,625 | 12.77 |
| Maine | 2,587 | 477 | 11 | 18.86 | 372 | 14.38 | 389 | 15.04 |
| Maryland | 5,519 | 945 | 19 | 17.47 | 252 | 4.57 | 264 | 4.78 |
| Massachusetts | 5,302 | 1,387 | 35 | 26.82 | 450 | 8.49 | 462 | 8.71 |
| Michigan | 11,709 | 1,333 | 78 | 12.05 | 1,292 | 11.03 | 1,309 | 11.18 |
| Minnesota | 13,738 | 321 | 51 | 2.71 | 582 | 4.24 | 597 | 4.35 |
| Mississippi | 16,842 | 1,801 | 221 | 12.01 | 1,053 | 6.25 | 1,400 | 8.31 |
| Missouri | 24,654 | 3,995 | 201 | 17.02 | 2,213 | 8.98 | 2,904 | 11.78 |
| Montana | 5,223 | 575 | 21 | 11.41 | 358 | 6.85 | 430 | 8.23 |
| Nebraska | 15,522 | 1,974 | 177 | 13.86 | 1,213 | 7.81 | 1,808 | 11.65 |
| Nevada | 2,143 | 85 | 2 | 4.06 | 25 | 1.17 | 27 | 1.26 |
| New Hampshire | 2,537 | 487 | 13 | 19.71 | 193 | 7.61 | 237 | 9.34 |
| New Jersey | 6,820 | 1,286 | 25 | 19.22 | 442 | 6.48 | 473 | 6.94 |
| New Mexico | 4,092 | 356 | 22 | 9.24 | 201 | 4.91 | 211 | 5.16 |
| New York | 19,167 | 3,001 | 81 | 16.08 | 1,578 | 8.23 | 1,628 | 8.49 |
| North Carolina | 18,834 | 2,714 | 115 | 15.02 | 1,336 | 7.09 | 1,367 | 7.26 |
| North Dakota | 4,335 | 471 | 101 | 13.19 | 455 | 10.50 | 559 | 12.90 |
| Ohio | 26,962 | 3,297 | 21 | 12.31 | 1,251 | 4.64 | 1,282 | 4.75 |
| Oklahoma | 22,873 | 2,279 | 141 | 10.58 | 1,815 | 7.94 | 2,168 | 9.48 |
| Oregon | 8,297 | 1,446 | 19 | 17.66 | 401 | 4.83 | 433 | 5.22 |
| Pennsylvania | 23,257 | 3,647 | 270 | 16.84 | 3,022 | 12.99 | 3,046 | 13.10 |
| Rhode Island | 782 | 162 | 7 | 21.61 | 120 | 15.35 | 120 | 15.35 |
| South Carolina | 9,483 | 1,401 | 94 | 15.77 | 527 | 5.56 | 971 | 10.24 |
| South Dakota | 5,893 | 537 | 72 | 10.33 | 985 | 16.71 | 1,023 | 17.36 |
| Tennessee | 20,418 | 2,388 | 68 | 12.03 | 898 | 4.40 | 973 | 4.77 |
| Texas | 56,321 | 7,247 | 87 | 13.02 | 708 | 1.26 | 819 | 1.45 |
| Utah | 3,227 | 302 | 2 | 9.42 | 75 | 2.32 | 79 | 2.45 |
| Vermont | 2,930 | 632 | 10 | 21.91 | 75 | 2.56 | 182 | 6.21 |
| Virginia | 14,067 | 2,360 | 46 | 17.10 | 498 | 3.54 | 561 | 3.99 |
| Washington | 8,749 | 1,588 | 12 | 18.29 | 456 | 5.21 | 557 | 6.37 |
| West Virginia | 7,658 | 1,688 | 22 | 22.33 | 1,442 | 18.83 | 1,457 | 19.03 |
| Wisconsin | 14,813 | 686 | 30 | 4.83 | 943 | 6.37 | 1,003 | 6.77 |
| Wyoming | 3,176 | 169 | 8 | 5.57 | 204 | 6.42 | 216 | 6.80 |
| Guam | 57 | 7 | 0 | 12.28 | 6 | 10.53 | 9 | 15.79 |
| Puerto Rico | 2,337 | 982 | 24 | 43.05 | 294 | 12.58 | 336 | 14.38 |
- Overal Status includes Item 67 (Structural Condition) and Item 68 (Deck Geometry in addition to Federal Highway Administration's Good/Fair/Poor rating
- Overall Status - Closed: Condition rating of 0 or 1 for Item 58 (Deck), Item 59 (Superstructure), Item 60 (Substructure), Item 62 (Culvert); 0 for Item 67 (Structural Condition) or Item 68 (Deck Geometry)
- Overall Status - Needs repair or corrective action: Rating of 2 or 3 for Item 58 (Deck), Item 59 (Superstructure), Item 60 (Substructure); rating of 2 for Item 62 (Culvert); rating of 2 or 3 for Item 67 (Structural Condition), Item 68 (Deck Geometry)
- Overall Status - Meets minimum tolerable limits: Rating of 4 for Item 58 (Deck), Item 59 (Superstructure), Item 60 (Substructure); rating of 2 or 3 for Item 62 (Culvert); rating of 4 for Item 67 (Structural Condition), Item 68 (Deck Geometry)
- Overall Status - Good: Rating of 5 or above for Item 58 (Deck), Item 59 (Superstructure), Item 60 (Substructure), Item 62 (Culvert), Item 67 (Structural Condition), Item 68 (Deck Geometry)
- Good (G), Fair (F), Poor(P): These terms are defined in accordance with the Pavement and Bridge Condition Performance Measures final rule, published in January of 2017. Bridge Condition is determined by the lowest rating of National Bridge Inventory (NBI) condition ratings for Item 58 (Deck), Item 59 (Superstructure), Item 60 (Substructure), or Item 62 (Culvert). If the lowest rating is greater than or equal to 7, the bridge is classified as Good; if it is less than or equal to 4, the classification is Poor. Bridges rated 5 or 6 are classified as Fair.
- Structurally Deficient (SD): Condition rating of 4 or less for Item 58 (Deck), Item 59 (Superstructure), Item 60 (Substructure), or Item 62 (Culvert), OR having an appraisal rating of 2 or less for Item 67 (Structural Condition) or Item 71 (Waterway Adequacy) Beginning with the 2018 data archive, this term will be defined in accordance with the Pavement and Bridge Condition Performance Measures final rule, published in January of 2017, as a classification given to a bridge which has any component [Item 58, 59, 60, or 62] in Poor or worse condition [code of 4 or less].
- Functionally Obsolete (FO): Appraisal rating of 3 or less for Item 68 (Deck Geometry), Item 69 (Underclearances), or Item 72 (Approach Roadway Alignment), OR having an appraisal rating of 3 for Item 67 (Structural Condition) or Item 71 (Waterway Adequacy). Functionally obsolete is a legacy classification that was used to implement the Highway Bridge Program, which was discontinued with the enactment of MAP-21. As a result, fiscal year 2015 was the last year outstanding Highway Bridge Program funds could be obligated on eligible projects, including ones with bridges that were once classified as functionally obsolete. Therefore, FHWA is no longer tracking this measure, and will not be publishing it on our website for the 2016 data forward. Our focus has shifted to a performance-based program as established in MAP-21 and continued in the Fast Act. As such, we encourage the use of the Good-Fair-Poor bridge condition measures outlined in the Pavement and Bridge Condition Performance Measures final rule, published in January of 2017.
'; popupContent += '
| Total # of Bridges | '+feature.properties.total+' | |
| Bridges need repair or corrective action | '+feature.properties.nf+' | |
| Closed | '+feature.properties.cl+' | |
| Number | Percent | |
| Rated Poor by USDOT | '+feature.properties.poor+' | '+feature.properties.pctpoor+' |
| Structurally Deficient | '+feature.properties.sd+' | '+feature.properties.pctsd+' |
'; popupContent += '
More
'; return popupContent; }//{"type": "Feature","properties":{"gid":"01001", "name":"Autauga County, AL", "slug":"autauga", "stslug":"alabama", "year":"2018", "total":"117", "nf":"14", "nfc":"14", "cl":"0", "pctnfc":"11.97","poor":"4","pctpoor":"3.42","sd":"4","pctsd":"3.42","fo":"16","pctfo":"13.68","fc":"#e6b414","pc":"#00f014"},"geometry": {"type": "MultiPolygon","coordinates":US01001}} function onBridgeFeature(feature) { if(feature.properties.ost == 'good'){var ost = 'Good/Fair';} else if(feature.properties.ost == 'poor'){var ost = 'Meets minimum tolerable limits';} else if(feature.properties.ost == 'repair'){var ost = 'Needs repair or corrective action';} else if(feature.properties.ost == 'closed'){var ost = 'Closed';} else if(feature.properties.ost == 'N/A'){var ost = 'Report Not Available';}; if(feature.properties.bc == 'F'){var bc = 'Fair';} else if(feature.properties.bc == 'G'){var bc = 'Good';} else if(feature.properties.bc == 'P'){var bc = 'Poor';}; if(feature.properties.sd == 'y'){var sd = '
Structurally Deficient';} else { var sd = '';} if(feature.properties.fo == 'y'){var fo = '
Functionally Obsolete';} else { var fo = '';} var popupContent = "";// var popupContent = "
I started out as a GeoJSON " + feature.geometry.type + ", but now I'm a Leaflet vector!
"; popupContent += '
'+feature.properties.name+'
'; popupContent += '
| NBI Inspection Date | '+feature.properties.idte+' |
| Overall Status | '+ost+' |
| NBI Bridge Condition | '+bc+sd+fo+' |
| Sufficiency Rating | '+feature.properties.sr+' |
| Structural Evaluation | '+feature.properties.item67+': '+feature.properties.stru+' |
| Deck Geometry | '+feature.properties.item68+': '+feature.properties.deck+' |
'; popupContent += '
More
'; return popupContent; } var CntyBridgesJSON = { "type": "FeatureCollection", "features":BridgeJSONData };mapboxgl.accessToken = 'pk.eyJ1IjoieXB5dW4iLCJhIjoiY2oxcW4ybWhxMDBkMjJxcGVhbDV5cnpzYyJ9.oFQSnOc57xCR7A51OR6-3w'; //ck0flqufl2k1x1cpmupm5sl2yvar map = new mapboxgl.Map({container: 'bridgeMap', style: 'mapbox://styles/ypyun/cj83a8ga5abkq2sqpivw3nrzg',center: [-95.712891,37.090240], zoom: 4, attributionControl: false, });map.addControl(new mapboxgl.AttributionControl({ compact: false, customAttribution:['Map Icons Collection'] })); var STLINE = {"type":"FeatureCollection", "features":[]}; // ptype listmap.on('style.load', function() { var layers = map.getStyle().layers; var firstSymbolId; for (var i = 0; i < layers.length; i++) { if (layers[i].type === 'symbol') { firstSymbolId = layers[i].id; break; } } map.addSource('bridges', {type: 'geojson', data: CntyBridgesJSON }); map.addLayer({ "id": "bridge_gon", "type": "fill", "source":"bridges", "filter":["==","$type","Polygon"], "paint": {'fill-color': {type:'identity', property:'fc'}, 'fill-opacity':0.8, 'fill-outline-color': '#666', }, "filter":["==","$type","Polygon"]}, firstSymbolId); map.on('click', "bridge_gon", function (e) {new mapboxgl.Popup({ offset: 0 }).setLngLat(e.lngLat).setHTML(onCountyFeature(e.features[0])).addTo(map);}); map.on('mouseenter', "bridge_gon", function () {map.getCanvas().style.cursor = 'pointer'; }); map.on('mouseleave', "bridge_gon", function () {map.getCanvas().style.cursor = '';}); }); var bounds = new mapboxgl.LngLatBounds();var BounceLine = [[[[-125.0011, 24.9493],[-66.9326, 49.5904]]]]; BounceLine.forEach(function(Tpolygon) { Tpolygon.forEach(function(Tline){ Tline.forEach(function(Tpoint){bounds.extend(Tpoint); }) }) });map.fitBounds(bounds, { padding: 120 });map.addControl(new mapboxgl.NavigationControl(), 'top-left');
