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1.0 CIMCITY COMMISSION INFORMATION MEMORANDUM February 14, 2022 ADMINISTRATIVE BRIEF from Jim Teutsch, Director Public Works Department National Bridge Inspection Program: In 1971, in response to the collapse of the 2,235 foot Silver Bridge in West Virginia in late 1967 where 46 people lost their lives, the Federal Highway Administration (FHWA) for the first time required that all vehicular bridges open to the public that were built with federal funds or carried a federally funded road be inspected regularly. In 1978 that requirement was extended to all public bridges or bridge length culverts that span a gap of 20' or more. Salina currently has 25 such structures, the locations of which are shown on the map to the right. A high profile bridge collapse that occurred in Minneapolis, Minnesota in 2007 killed 13 people and injured 147 people bringing much-needed attention to the state of bridges across the country. And just this year on January 28, a 497 -foot bridge that was owned by the city of Pittsburgh, Pennsylvania collapsed, injuring 10 people. These examples highlight the importance of inspecting, maintaining and repairing our bridges regularly and replacing them as conditions warrant. Implementation: The FHWA entrusts the state departments _ of transportation with the implementation of the program, 15 14 t3 which includes maintaining qualifications of bridge inspectors, ensuring that each of the state's qualifying structures is 16 inspected by its scheduled time, randomly checking each entity's inspections to ensure their accuracy, and maintaining Salina Structure Locations a database that is shared with the FHWA annually. The Kansas Department of Transportation (KDOT) dedicates six full time employees to this program that monitors the more than 20,000 structures in Kansas. Inspection: Until 2013, the City of Salina's structures were inspected by consultant inspectors. In 2015, City staff completed the requirements to perform —= -_ - the inspections without consultant assistance. The requirements for a licensed engineer include: completion of a two week FHWA instructed class with testing; assisting a qualified inspector with 50 inspections; attending a KDOT led refresher course each year; and completion of a three day FHWA instructed refresher class with testing every five years. s Inspecting a structure, completing the inspection form, and uploading cy the information into KDOT's database takes three to four staff hours. culvert at Crawford east of I-135 1 of 3 Each qualifying structure is inspected every two years until one of its ratings drops to a 3 (more on that later) at which time its inspection frequency increases to yearly. Structure conditions change very slowly, thus the FHWA is considering changing the frequency of routine inspections to every four years. Smaller structures in Salina are also inspected periodically by City staff but their conditions are not reported to KDOT. The bridges in West Virginia and Minnesota had members which were considered fracture critical. A fracture critical member is a steel member the failure of which could cause partial or total collapse of the bridge. Bridges without fracture critical members are considered to have redundancy, i.e., failure of one member will be compensated for by another member to protect against a collapse. Salina does not have any bridges which are considered fracture critical. Ratings: A number of different measures are used to quantify the condition of structures. Culverts carry one overall rating, whereas bridges carry three different ratings: • Substructure — generally the vertical members of the bridge, like the base of the letter T, usually comprised of concrete; Superstructure — generally the horizontal members of the bridge, like the top of the letter T, usually either concrete or steel; Deck — generally the driving surface, usually concrete. Structures are rated as follows: • 9 — new structure not open to traffic; • 8 — good condition, no repairs needed; • 7 — generally good condition; • 6 —fair condition; • 5 — generally fair condition; • 4 — poor condition; • 3 — serious condition; • 2 — critical condition; • 1 — imminent failure condition; • 0 — failed condition, out of service, beyond corrective action Sufficiency rating is a number from 0 to 100 that indicates the sufficiency of a structure to remain in service. Generally a sufficiency rating equal to or below 80 indicates a structure is eligible for rehabilitation and a sufficiency rating equal to or below 50 indicates a structure is eligible for replacement. State agencies may use sufficiency ratings to prioritize funding. Salina currently has seven structures eligible for rehabilitation, and the structure on northbound Ninth Street south of 1-70 is currently being replaced in 2022 at a cost of about $2 million. Load ratings are completed periodically by licensed structural engineers to determine the load capacity of structures and often result in the posting of load limits for the structures, which limits the size of vehicles allowed to cross. Salina currently has four structures posted for load. The ratings for each of Salina's bridges are listed on the next page. 2 of 3 Summary: Salina's structures could be described as generally good, with the median rating being a 7 and the full distribution as follows: 1 — Generally Fair/5; 9 — Fair/6; 13 — Generally Good/7; 1 — Good/8. The north- bound, Ninth Street bridge over Mulberry Creek currently being replaced will soon be added to the Good/8 category. Salina's investment in structures that are still in use by decade is: 1940's, 2; 1950's, 7; 1960's, 5; 1970's, 0; 1980's, 1; 1990's, 3; 2000's, 5; 2010's, 1; and 2020's, 1 for an average of about three per decade. As such, while none of Salina's bridges is even in serious condition, it is logical to expect that further structure expenses beyond this year's replacement will likely be incurred in the 2020's. While not a bridge length culvert (and therefore not part of this inventory), a 4' tall and 10' wide, 1970s box culvert located under Winn Road south of Northwood Lane was recently closed due to delamination of interior concrete and the loss of structural integrity. Though not a requirement as part of this bridge inventory, Public Works staff will inspect and report on the condition of all such culverts in Salina in 2022. 3 of 3 Map Feature Functional Year Year Super- sub- Sub- Length Width uffi- # Structure Crossed Classification Built Rehabi- Deck strut- Culvert �ciiency� Comments litated tune Lure (k (ft) Ratin Ninth southbound Mulberry 1 south of 1-70 Creek Arterial 2004 7 7 8 233.3 99.0 2 Ninth northbound Mulberry Being replaced in south oft Creek Arterial 1962 4 4 7 233.3 45.3 31.0 -70 2022 3 Ohio south of Pacific Railroad Arterial 2006 7 8 6 530.6 81.2 Old Smoky 4 Lakewood north of Iron Local 2005 7 8 7 105 98.9 Hill River Iron west of Smoky Hill 5 Arterial 1960 1986 7 7 6 286.1 99.0 Mamount River Walnut north of Old Smoky 6 Oakdale Park Hill River Local 1999 7 8 7 88.6 89.4 Mulberry west of Old Smoky 7 Oakdale Park Hill River Local 1997 7 8 7 123 94.9 Oakdale northeast of Old Smoky 8 Oakdale Park Hill River Local 1960 1992 7 7 7 138.1 99.7 Greeley east of Old Smoky 9 Kenwood Park Hill River Local 2015 7 8 8 43 96.4 Crawford south of Bill Smoky Hill 30 Burke Park River Arterial 1981 7 7 7 329.1 69.0 Magnolia northeast of Smoky Hill 11 the soccer complex River Arterial 1958 7 7 7 222.1 24 53.5 12 Magnolia south of Drainage Posted for Central Mall ditch Arterial 1961 6 25 130 56.2 emergency veh only Schilling west of 13 Marcella Dry Creek Arterial 2000 7 54.5 82.3 Drainage 14 Schilling west of Royal ditch Arterial 1955 7 22.6 50 82.9 Posted at 24 tons Schilling east of Drainage 15 Centennial ditch Arterial 1940 1999 6 27.9 98.4 Centennial south of Drainage 16 Bailey ditch Arteria l 1940 2016 8 22.8 97.7 17 Magnolia west of 1-135 Dry Creek Arterial 1960 6 33.2 56.2 Centennial south of Drainage 18 Tony's Road ditch Arterial 1958 7 34.1 83.6 Scanlan south of Tony's Drainage 19 Road ditch Local 1955 6 33.1 81.5 Posted at 20 tons Cloud east of 20 Centennial Dry Creek Arterial 2000 7 38.7 98.5 Centennial north of 21 Cloud Dry Creek Arterial 1955 1999 7 36.8 84.5 22 Crawford east of 1-135 Dry Creek Arterial 1960 6 38.7 75 64.0 Posted for emergency veh only 23 State at west city lim its Drainage Arterial 1959 6 39 90.6 ditch 24 Broadway north of Ash Railroad Arterial 1990 7 7 6 453.1 48 68.1 Grand west of 25 Broadway Dry Creek Local 1950 2013 1 5 6 6 51.8 78.0 Salina's Structures and Ratings