Frederick County, Maryland bridges
Frederick County has 485 bridges and culverts in the National Bridge Inventory, the oldest built in 1856. 14 (3%) are rated poor. The most common type is stringer/multi-beam or girder (40%).
- Bridges
- 485
- Good
- 40%
- Fair
- 57%
- Poor
- 3%
- 14 bridges
- Average age
- 53.4 yrs
- Posted or closed
- 31
Map of bridges in Frederick County
Green good, amber fair, red poor. Click a marker for details.Search bridges in Frederick County
Type at least two characters, or pick a condition or type, to search every bridge in the county.
Condition
Good40%(196)
Fair57%(275)
Poor3%(14)
When they were built
Busiest
- Is 270 over Md 85 (buckeystown Pike)Good111,550 vehicles/day
- US 15 & Ramp 8 over Carroll CreekFair95,190 vehicles/day
- US 15 Nbr over US 40/W. Patrick StreetFair95,190 vehicles/day
- US 15 Sbr over US 40/W. Patrick StreetFair95,190 vehicles/day
- Is 70 Ebr over Md 180Fair94,760 vehicles/day
Longest
- Fair
- US 15 over Potomac River CSX C&oFair1,700 ft
- Good
- Fair
- Fair
Oldest
- Roddy Road over Owens CreekGoodBuilt 1856
- Utica Road over Fishing CreekFairBuilt 1860
- Old Frederick Road over Owens CreekFairBuilt 1869
- Keysville Road over Toms CreekFairBuilt 1876
- Poffenberger Road over Catoctin CreekPoorBuilt 1878
All bridges in Frederick County
Busiest first · showing 1–200 of 485| Bridge | Location | Built | Type | Length | Daily traffic | Condition |
|---|---|---|---|---|---|---|
| Is 270 over Md 85 (buckeystown Pike) No. 100000100073010 | 1.0 N of Br No 1007400 | 2020 | Stringer/Multi-beam or Girder | 432 ft | 111,550 | Good |
| US 15 & Ramp 8 over Carroll Creek No. 100000100020020 | 0.64 Mile North of US 40 | 1958 | Culvert | 52 ft | 95,190 | Fair |
| US 15 Nbr over US 40/W. Patrick Street No. 100000100101011 | 1.09 Miles N of Md 180 | 1958 | Stringer/Multi-beam or Girder | 165 ft | 95,190 | Fair |
| US 15 Sbr over US 40/W. Patrick Street No. 100000100101012 | 1.09 Miles N of Md 180 | 1958 | Stringer/Multi-beam or Girder | 165 ft | 95,190 | Fair |
| Is 70 Ebr over Md 180 No. 100000100128013 | 0.02 Mile East of US 15 | 1968 | Stringer/Multi-beam or Girder | 124 ft | 94,760 | Fair |
| Is 70 Wbr over Md 180 No. 100000100128014 | 0.02 Mile East of US 15 | 1968 | Stringer/Multi-beam or Girder | 121 ft | 94,760 | Fair |
| Is 70 Wbr over US 40 Ebr(ramp 5) No. 100000100138010 | 0.5 Mile East of Md 180 | 2002 | Stringer/Multi-beam or Girder | 135 ft | 94,760 | Good |
| US 15 Nbr over Rosemont Ave No. 100000100100011 | 0.77 Mile North of US 40 | 1958 | Stringer/Multi-beam or Girder | 138 ft | 93,930 | Fair |
| US 15 Sbr over Rosemont Ave No. 100000100100012 | 0.77 Mile North of US 40 | 1968 | Stringer/Multi-beam or Girder | 139 ft | 93,930 | Fair |
| Is 70 Ebr over US 15 No. 100000100141013 | 0.37 Mile East of Md 180 | 1968 | Stringer/Multi-beam or Girder | 199 ft | 89,580 | Fair |
| Is 70 Wbr over US 15 No. 100000100141014 | 0.37 Mile East of Md 180 | 1968 | Stringer/Multi-beam or Girder | 200 ft | 89,580 | Fair |
| Is 270 NB over Bennett Creek No. 100000100079011 | 1.26 Mi. N. of Md 80 | 1950 | Stringer/Multi-beam or Girder | 79 ft | 88,192 | Fair |
| Is 270 SB over Bennett Creek No. 100000100079012 | 1.26 Mi. N. of Md 80 | 1950 | Stringer/Multi-beam or Girder | 79 ft | 88,192 | Fair |
| Is 270 over DR Perry RD No. 100000100080010 | 1.18 Miles N of Mont CO | 2010 | Stringer/Multi-beam or Girder | 80 ft | 87,230 | Good |
| Is 270 over Branch of Bennett Creek No. 100000100174020 | 0.21 M S of Br No 1017900 | 1951 | Culvert | 21 ft | 86,751 | Fair |
| Is 70 Ebr & Ramp L over Is 270 No. 100000100103010 | 0.09 M W of Br No 1012200 | 1955 | Stringer/Multi-beam or Girder | 252 ft | 83,731 | Fair |
| Is 70 Wbr over Is 270 No. 100000100137010 | 0.19 M E of Br No 1013800 | 1968 | Stringer/Multi-beam or Girder | 359 ft | 83,731 | Good |
| Is 70 Ebr over Monument Road No. 100000100133013 | 1.59 Miles E of Wash CO | 1968 | Stringer/Multi-beam or Girder | 206 ft | 83,710 | Fair |
| Is 70 Wbr over Monument Road No. 100000100133014 | 1.59 Miles E of Wash CO | 1968 | Stringer/Multi-beam or Girder | 254 ft | 83,710 | Fair |
| US 15 Nbr over West Seventh ST No. 100000100099011 | 1.28 Miles North of US 40 | 1958 | Stringer/Multi-beam or Girder | 121 ft | 83,230 | Fair |
| US 15 Sbr over West Seventh ST No. 100000100099012 | 1.28 Miles North of US 40 | 1968 | Stringer/Multi-beam or Girder | 121 ft | 83,230 | Fair |
| Is 270 NB over Md 80 No. 100000100078011 | 3.52 Miles N of Mont CO | 1950 | Stringer/Multi-beam or Girder | 64 ft | 81,890 | Fair |
| Is 270 SB over Md 80 No. 100000100078012 | 3.52 Miles N of Mont CO | 1950 | Stringer/Multi-beam or Girder | 64 ft | 81,890 | Fair |
| Is 270 over CSX Transportation No. 100000100074010 | 1.0 Mile South of Md 85 | 1950 | Stringer/Multi-beam or Girder | 138 ft | 80,340 | Fair |
| Is 270 over Monocacy River No. 100000100075010 | 1.32 Mile South of Md 85 | 1950 | Stringer/Multi-beam or Girder | 507 ft | 80,340 | Fair |
| Is 270 NB over Baker Valley RD No. 100000100076011 | 2.96 Miles North of Md 80 | 1950 | Stringer/Multi-beam or Girder | 59 ft | 80,340 | Fair |
| Is 270 SB over Baker Valley RD No. 100000100076012 | 2.96 Miles North of Md 80 | 1950 | Stringer/Multi-beam or Girder | 59 ft | 80,340 | Fair |
| Is 70 Ebr over Is 70 Ramp a No. 100000100142013 | 0.28 Mile East of Md 180 | 1968 | Stringer/Multi-beam or Girder | 78 ft | 78,360 | Fair |
| Is 70 Wbr over Is 70 Ramp a No. 100000100142014 | 0.28 Mile East of Md 180 | 1968 | Stringer/Multi-beam or Girder | 80 ft | 78,360 | Fair |
| Is 70 EB over CSX Trans. No. 100000100039013 | .09 M E of Bill Moxley RD | 1954 | Stringer/Multi-beam or Girder | 241 ft | 77,985 | Fair |
| Is 70 WB over CSX Trans. No. 100000100039014 | .09 M E of Bill Moxley RD | 1954 | Stringer/Multi-beam or Girder | 260 ft | 77,985 | Fair |
| Is 70 Ebr over US 40AL No. 100000100131013 | 0.28 M E of Br No 1014500 | 1967 | Stringer/Multi-beam or Girder | 230 ft | 74,920 | Fair |
| Is 70 Wbr over US 40 Alt No. 100000100131014 | 0.28 M E of Br No 1014500 | 1967 | Stringer/Multi-beam or Girder | 237 ft | 74,920 | Fair |
| Is 70 Ebr over Monocacy River No. 100000100183013 | 0.22 M S of Br No 1018400 | 1985 | Stringer/Multi-beam or Girder | 583 ft | 72,900 | Good |
| Is 70 Wbr over Monocacy River No. 100000100183014 | 0.22 M S of Br No 1018400 | 1985 | Stringer/Multi-beam or Girder | 583 ft | 72,900 | Good |
| Is 70 Ebr over Mt Tabor Road No. 100000100134013 | 1.15 Miles West of Md 17 | 1968 | Stringer/Multi-beam or Girder | 139 ft | 71,007 | Fair |
| Is 70 Wbr over Mt Tabor Road No. 100000100134014 | 1.15 Miles West of Md 17 | 1968 | Stringer/Multi-beam or Girder | 168 ft | 71,007 | Fair |
| Is 70 over Grindstone Run No. 100000100135010 | 0.3 Mile West of Md 17 | 1968 | Arch - Deck | 34 ft | 70,011 | Fair |
| Is 70 Ebr over Harmony RD Little Catoc No. 100000100129013 | 1.96 Miles East of Md 17 | 1968 | Stringer/Multi-beam or Girder | 334 ft | 69,153 | Fair |
| Is 70 Wbr over Harmony RD Little Catoc No. 100000100129014 | 1.96 Miles East of Md 17 | 1968 | Stringer/Multi-beam or Girder | 334 ft | 69,153 | Fair |
| Is 70 over Bush Creek No. 100000100021040 | 0.84 Mile East of Md 75 | 1954 | Frame | 36 ft | 69,020 | Fair |
| Is 70 Ebr over Bill Moxely Road No. 100000100161013 | 1.73 MI W of Carroll CO | 1974 | Stringer/Multi-beam or Girder | 140 ft | 69,020 | Fair |
| Is 70 Wbr over Bill Moxely Road No. 100000100161014 | 1.73 MI W of Carroll CO | 1974 | Stringer/Multi-beam or Girder | 140 ft | 69,020 | Fair |
| Is 70 Ebr over Is 70 Ramp E No. 100000100145013 | 0.28 Mile West of US 40AL | 1969 | Stringer/Multi-beam or Girder | 183 ft | 68,800 | Fair |
| Is 70 Wbr over Is 70 Ramp E No. 100000100145014 | 0.28 Mile West of US 40AL | 1969 | Stringer/Multi-beam or Girder | 138 ft | 68,800 | Fair |
| Is 70 Ebr over CSX Trans and South Stre No. 100000100106013 | 0.53 MI W of Md 144 Fa | 2013 | Stringer/Multi-beam or Girder | 262 ft | 68,623 | Good |
| Is 70 Wbr over CSX Trans and South ST No. 100000100106014 | 0.53 MI W of Md 144 Fa | 2013 | Stringer/Multi-beam or Girder | 262 ft | 68,623 | Good |
| Is 70 Ebr over Hollow Road No. 100000100127013 | 0.1 M W of Ridge Road | 1968 | Stringer/Multi-beam or Girder | 152 ft | 68,230 | Fair |
| Is 70 Wbr over Hollow Road No. 100000100127014 | 0.1 M W of Ridge Road | 1968 | Stringer/Multi-beam or Girder | 156 ft | 68,230 | Fair |
| Is 70 Ebr over Catoctin Creek No. 100000100130013 | 0.60 Mile East of Md 17 | 1968 | Stringer/Multi-beam or Girder | 186 ft | 68,230 | Fair |
| Is 70 WB over Catoctin Creek No. 100000100130014 | 0.60 Mile East of Md 17 | 1968 | Stringer/Multi-beam or Girder | 186 ft | 68,230 | Fair |
| Is 70 over Long Branch No. 100000100185030 | 0.23 M E of Br No 1018400 | 1985 | Culvert | 66 ft | 62,311 | Fair |
| Is 70 Ebr over Spring Ridge Pkwy No. 100000100186013 | 0.7 M E of Quinn Road | 1985 | Stringer/Multi-beam or Girder | 90 ft | 59,922 | Good |
| Is 70 Wbr over Spring Ridge Pkwy No. 100000100186014 | 0.7 M E of Quinn Road | 1985 | Stringer/Multi-beam or Girder | 90 ft | 59,922 | Good |
| Is 70 Ebr over Old National Pike No. 100000100188013 | 3.71 Mile West of Md 75 | 1985 | Stringer/Multi-beam or Girder | 180 ft | 59,922 | Fair |
| Is 70 Wbr over Old National Pike No. 100000100188014 | 3.71 Mile West of Md 75 | 1985 | Stringer/Multi-beam or Girder | 180 ft | 59,922 | Fair |
| US 15/340 over Ballenger Creek No. 100000100151020 | 1.95 Miles South of Is 70 | 1968 | Culvert | 29 ft | 53,991 | Fair |
| US 40 over Branch of Rock Creek No. 100000100035020 | .036 Mile East of US 40AL | 1947 | Culvert | 43 ft | 47,332 | Fair |
| US 15B over US 15/US 40 No. 100000100102010 | 0.39 Mile North of Md 180 | 1955 | Stringer/Multi-beam or Girder | 225 ft | 45,900 | Good |
| US 15 SB over Tuscarora Creek No. 100000100010010 | 1/4 Mi. N. of Monocacy Bl | 1950 | Stringer/Multi-beam or Girder | 74 ft | 45,700 | Good |
| US 15 Nbr over Tuscarora Creek No. 100000100159010 | 1/4 Mi. N. of Monocacy Bl | 1972 | Stringer/Multi-beam or Girder | 74 ft | 45,700 | Good |
| US 15 Sbr over Fishing Creek No. 100000100111010 | 0.07 MI N of Powell RD | 1961 | Slab | 65 ft | 43,080 | Fair |
| US 15 Nbr over Fishing Creek No. 100000100158010 | 0.07 MI N of Powell RD | 1972 | Slab | 66 ft | 43,080 | Fair |
| US 15 Nbr over Md 26 No. 100000100097011 | 0.15 Mile North of Md 26 | 2018 | Stringer/Multi-beam or Girder | 97 ft | 42,640 | Good |
| US 15 Sbr over Md 26 No. 100000100097012 | 0.15 Mile North of Md 26 | 1968 | Stringer/Multi-beam or Girder | 179 ft | 42,640 | Fair |
| Md 85 over Is 70 No. 100000100195010 | At Is 70 | 2009 | Girder and Floorbeam System | 172 ft | 35,962 | Good |
| US 340 Ebr over US 15 Sbr No. 100000100121010 | 4.33 Miles East of Md 180 | 1966 | Stringer/Multi-beam or Girder | 115 ft | 32,282 | Fair |
| US 15 over Little Hunting Creek No. 100000100009020 | .87 Mile North of Md 806A | 1962 | Culvert | 35 ft | 30,800 | Fair |
| US 15 Nbr over Md 15C No. 100000100181011 | 0.77 Mile South of Md 77 | 1985 | Girder and Floorbeam System | 114 ft | 30,800 | Good |
| US 15 Sbr over Md 15C No. 100000100181012 | 0.77 Mile South of Md 77 | 1985 | Girder and Floorbeam System | 114 ft | 30,800 | Good |
| US 15 Nbr over Md 77 Hunting Creek No. 100000100109010 | 0.46 Mile South of Md 15D | 1957 | Stringer/Multi-beam or Girder | 270 ft | 30,410 | Fair |
| US 15 Sbr over Md 77 Hunting Creek No. 100000100179010 | 0.46 Mile South of Md 15D | 1985 | Girder and Floorbeam System | 270 ft | 30,410 | Fair |
| US 340 over Catoctin Creek No. 100000100112010 | 0.63 Mile East of Md 180 | 1961 | Stringer/Multi-beam or Girder | 414 ft | 28,982 | Fair |
| US 15 over Maryland Midland RR No. 100000100108040 | 0.26 Mile South of Md 550 | 1957 | Frame | 42 ft | 28,321 | Fair |
| Md 180 Eastbound over US 15 No. 100000100149013 | 0.49 Mile East of Is 70 | 2020 | Stringer/Multi-beam or Girder | 277 ft | 27,750 | Good |
| Md 180 Westbound over US 15 No. 100000100149014 | 0.49 Mile East of Is 70 | 1968 | Stringer/Multi-beam or Girder | 269 ft | 27,750 | Fair |
| US 15 over Owens Creek No. 100000100004010 | 0.6 Mile North of Md 550 | 1954 | Stringer/Multi-beam or Girder | 63 ft | 27,210 | Fair |
| US 15 Nbr over Md 550 No. 100000100154010 | 0.36 Mile North of Md 15D | 1972 | Stringer/Multi-beam or Girder | 172 ft | 27,210 | Fair |
| US 15 Sbr over Md 550 No. 100000100169010 | 0.36 Mile North of Md 15D | 1982 | Stringer/Multi-beam or Girder | 174 ft | 27,210 | Fair |
| US 15 Nbr over Little Owens Creek No. 100000100170010 | 1.74 Mile North of Md 550 | 1982 | Stringer/Multi-beam or Girder | 47 ft | 27,210 | Fair |
| US 340 over Little Catoctin Creek No. 100000100115020 | 0.36 Mile East of Md 17 | 1964 | Culvert | 24 ft | 24,600 | Fair |
| US 340 Ebr over Md 180 Wbr No. 100000100051010 | 0.07 Mile East of Md 180 | 1964 | Stringer/Multi-beam or Girder | 217 ft | 23,492 | Fair |
| US 340 Ebr over S Mountain Road No. 100000100113013 | 0.27 Mile East of Md 180 | 1964 | Stringer/Multi-beam or Girder | 123 ft | 23,492 | Fair |
| US 340 Wbr over S Mountain Road No. 100000100113014 | 0.27 Mile East of Md 180 | 1964 | Stringer/Multi-beam or Girder | 103 ft | 23,492 | Fair |
| US 40 Wbr over Rock Creek No. 100000100034010 | 0.01 M E of Rock Creek DR | 1936 | Tee Beam | 42 ft | 20,782 | Fair |
| US 15 over Potomac River CSX C&o No. 100000100017010 | Point of Rocks | 1939 | Truss - Thru | 1,700 ft | 20,473 | Fair |
| Baughmans Lane over Carroll Creek No. 200000F-F-20030 | 100 S. of Rosemont Ave. | 1961 | Culvert | 56 ft | 20,388 | Fair |
| Baughmans Lane over Rock Creek No. 200000F-F-22030 | 1 Mile North of US 40 | 1970 | Culvert | 43 ft | 20,388 | Poor |
| New Design Road over Ballenger Creek No. 200000F-0201010 | 1.42 Mi. South of I-70 | 1998 | Stringer/Multi-beam or Girder | 194 ft | 19,907 | Good |
| Md 355 over Is 70 No. 100000100105010 | 0.1 Mile North of Md 85 | 2008 | Stringer/Multi-beam or Girder | 225 ft | 19,242 | Good |
| US 15 SB over Toms Creek No. 100000100124010 | 0.65 Mile N of US 15BU | 1965 | Slab | 106 ft | 18,340 | Fair |
| US 15 SB over Flat Run No. 100000100125010 | 0.2 Mile South of Md 140 | 1965 | Stringer/Multi-beam or Girder | 105 ft | 18,340 | Fair |
| US 15 Nbr over Toms Creek No. 100000100165010 | 0.65 Mile N of US 15BU | 1980 | Slab | 110 ft | 18,340 | Fair |
| US 15 Nbr over Flat Run No. 100000100166010 | 0.2 Mile South of Md 140 | 1981 | Stringer/Multi-beam or Girder | 105 ft | 18,340 | Good |
| Md 85 over Ballenger Creek No. 100000100012010 | 1.3 Miles South of Is 270 | 1926 | Arch - Deck | 60 ft | 17,450 | Fair |
| New Design Road over Is 70 No. 100000100104010 | 0.51 MI W of Md 355 | 2002 | Stringer/Multi-beam or Girder | 334 ft | 17,294 | Good |
| New Design Road over Arundel Branch No. 200000F-0218010 | .25 Mi. N. of Corporate D | 1998 | Culvert | 94 ft | 17,000 | Good |
| New Design Road over Is 270 No. 100000100110010 | 1.03 MI N of Md 85 | 2001 | Stringer/Multi-beam or Girder | 290 ft | 16,733 | Good |
| Monocacy Boulevard over Carroll Creek No. 200000F-F-44010 | 0.1 MI S of E Church ST | 2012 | Arch - Deck | 264 ft | 16,392 | Good |
| Md 26 over Monocacy River No. 100000100025014 | 0.2 Mile West of Md 194 | 1932 | Truss - Thru | 323 ft | 16,296 | Fair |
| Md 26 over Monocacy River No. 100000100025013 | 0.2 Mile West of Md 194 | 1997 | Stringer/Multi-beam or Girder | 329 ft | 16,275 | Fair |
| East Street over Carroll Creek No. 200000F-F-42010 | Just S. of South Street | 1999 | Slab | 29 ft | 15,334 | Fair |
| Ballenger Creek Pi over Pike Branch No. 200000F-0219020 | 0.27 MI S of Crestwood Bd | 2003 | Culvert | 28 ft | 14,501 | Good |
| US 15 SB over Little Owens Creek No. 100000100003040 | 1.74 Mile North of Md 550 | 1954 | Frame | 40 ft | 14,250 | Fair |
| Is 270 Wbr(ramp 1) over Is 70 Ebr No. 100000100122010 | 0.09 Mile South of US 40 | 1967 | Stringer/Multi-beam or Girder | 223 ft | 14,067 | Fair |
| Is 270 Ramps J & F over New Design Road No. 100000100123010 | 0.32 M S of Br No 1013700 | 2002 | Stringer/Multi-beam or Girder | 231 ft | 14,067 | Good |
| Md 144FA over Monocacy River No. 100000100038010 | 1.04 Mile East of Is 70 | 1955 | Truss - Deck | 527 ft | 13,861 | Fair |
| Is 70 Ramp a & E over US 15/US 340 No. 100000100143010 | 0.37 Mile East of Md 180 | 1968 | Stringer/Multi-beam or Girder | 183 ft | 13,542 | Fair |
| Md 144FA & CO RD over Long Branch No. 100000100022020 | 0.504 M W of Car. CO Line | 1954 | Culvert | 25 ft | 13,511 | Fair |
| Gas House Pike over Linganore Creek No. 200000F-0921010 | 1.0 MI W of Cntrl Church | 2021 | Stringer/Multi-beam or Girder | 84 ft | 13,056 | Good |
| Gas House Pike over Linganore Creek No. 200000F-0925010 | 1.0 MI W of Cntrl Church | 2021 | Stringer/Multi-beam or Girder | 57 ft | 13,056 | Good |
| Is 70 Ramp a over Md 180 No. 100000100140010 | 0.2 Mile East of US 15 | 1968 | Stringer/Multi-beam or Girder | 126 ft | 12,984 | Fair |
| I 70 Ramp B (4) over Md 180 No. 100000100190010 | I-70/MD 351 Interchange | 1996 | Stringer/Multi-beam or Girder | 105 ft | 12,602 | Fair |
| Md 355 over Monocacy River No. 100000100085010 | 2.29 Miles South of Md 85 | 1930 | Truss - Thru | 315 ft | 12,583 | Fair |
| Md 144FA over Is 70 No. 100000100107010 | 0.38 M W of King Avenue | 1984 | Stringer/Multi-beam or Girder | 293 ft | 11,771 | Fair |
| Willowdale Drive over Rock Creek No. 200000F-F-19030 | 0.4 MI North of US 40 | 1976 | Culvert | 30 ft | 11,232 | Fair |
| Md 75 over Bens Branch No. 100000100152020 | 0.19 MI S of Md 874C | 1964 | Culvert | 33 ft | 10,783 | Fair |
| Thomas Johnson Dri over Two Mile Run No. 200000F-F-33030 | 2000 Ft NE of Opossumtown | 1981 | Culvert | 21 ft | 10,567 | Fair |
| S. Carroll Street over Carroll Creek No. 200000F-F-05010 | 470 South of SR 144 | 1991 | Slab | 69 ft | 10,130 | Fair |
| Md 26 over Israel Creek No. 100000100026010 | 0.66 Mile East of Md 194 | 2000 | Stringer/Multi-beam or Girder | 206 ft | 10,092 | Good |
| North Mccain Drive over Rock Creek No. 200000F-F-24020 | 0.2 Mi. North of US 40 | 1996 | Culvert | 58 ft | 9,790 | Fair |
| Md 75 over Is 70 No. 100000100156010 | 0.24 MI S of Md 144FB | 1973 | Stringer/Multi-beam or Girder | 269 ft | 9,752 | Fair |
| Md 355 over Bennett Creek No. 100000100086010 | 1.06 Miles South of Md 80 | 2022 | Stringer/Multi-beam or Girder | 165 ft | 9,500 | Good |
| Crestwood Blvd over Arundel Branch No. 200000F-0206030 | .2 MI E. of New Design RD | 1990 | Culvert | 32 ft | 9,500 | Good |
| Monocacy Boulevard over Monocacy River No. 200000F-F-16012 | 0.1 MI South of Gas House | 1966 | Stringer/Multi-beam or Girder | 517 ft | 9,462 | Fair |
| Frederick Road over Hunting Creek No. 200000F-T-02010 | 0.2 MI SW of Md 77 | 1928 | Box Beam or Girders - Multiple | 68 ft | 9,402 | Poor |
| Monocacy Boulevard over Park Branch No. 200000F-F-38030 | 2.0 MI East of Md 355 | 2018 | Culvert | 64 ft | 9,321 | Good |
| Monocacy Boulevard over Monocacy River No. 200000F-F-41010 | 0.4 Miles S of Md 26 | 2000 | Stringer/Multi-beam or Girder | 680 ft | 9,321 | Good |
| Monocacy Boulevard over Monocacy River No. 200000F-F-45011 | 0.1 MI South of Gas House | 2019 | Stringer/Multi-beam or Girder | 531 ft | 9,321 | Good |
| US 40 Alt over Catoctin Creek No. 100000100040010 | 0.05 M E of Marker Road | 1923 | Arch - Deck | 85 ft | 9,212 | Fair |
| Md 28 over Monocacy River No. 100000100029010 | 0.98 MI W of Mont CO | 1931 | Truss - Thru | 449 ft | 9,175 | Fair |
| Md 140 over Flat Run No. 100000100062010 | 0.4 MI E of Emmitsburg | 2019 | Stringer/Multi-beam or Girder | 86 ft | 9,011 | Good |
| Md 140 over US 15 No. 100000100153010 | 0.16 MI S of Md 904F | 1971 | Stringer/Multi-beam or Girder | 253 ft | 9,010 | Fair |
| South Market Stree over Carroll Creek No. 200000F-F-06020 | 510 South of Md 144 | 1988 | Slab | 104 ft | 8,900 | Fair |
| Md 144FA over Carroll Creek No. 100000100037010 | 0.21 M E of Maryland Ave | 1995 | Culvert | 44 ft | 8,541 | Good |
| S. Court Street over Carroll Creek No. 200000F-F-07020 | 595 South of Md 144 | 1988 | Slab | 101 ft | 8,370 | Fair |
| Corporate Drive over King Branch No. 200000F-0203030 | .5 Mi. West of New Design | 1992 | Culvert | 35 ft | 8,118 | Good |
| Md 75 over Fahrney Branch No. 100000100045010 | 0.43 Mile South of Md 80 | 1933 | Tee Beam | 37 ft | 7,952 | Fair |
| Md 75 over Pleasant Branch No. 100000100046010 | 1.71 Miles N of Md 355 | 1930 | Slab | 45 ft | 7,952 | Fair |
| Md 75 over Bennett Creek No. 100000100047010 | 1.62 Miles N of Md 355 | 1974 | Stringer/Multi-beam or Girder | 74 ft | 7,952 | Fair |
| Md 17 over Is 70 No. 100000100136010 | 1.2 Mile South of US 40 | 1968 | Stringer/Multi-beam or Girder | 334 ft | 7,931 | Fair |
| Md 550 over Friends Creek No. 100000100171020 | 0.15 M S of Bentzel Road | 1981 | Culvert | 21 ft | 7,861 | Fair |
| Md 17 over Catoctin Creek No. 100000100164020 | 0.15 Mile South of US 40 | 1989 | Culvert | 46 ft | 7,835 | Good |
| US 15 Bu over Toms Creek No. 100000100002010 | 0.23 Mile North of US 15 | 1923 | Arch - Deck | 80 ft | 7,680 | Fair |
| US 40 Ebr over Is 70 Ramp F (02) No. 100000100146010 | 0.09 M W of Kehne Road | 1969 | Stringer/Multi-beam or Girder | 165 ft | 7,362 | Good |
| N. Bentz Street over Carroll Creek No. 200000F-F-10020 | 365 North of Md 144 | 1992 | Slab | 145 ft | 7,250 | Fair |
| Md 550 over Owens Creek No. 100000100061010 | 0.82 Mile North of US 15 | 1996 | Stringer/Multi-beam or Girder | 92 ft | 7,221 | Good |
| Old Camp Road over Rock Creek No. 200000F-F-18030 | 500 Feet North of US 40 | 1976 | Culvert | 32 ft | 7,210 | Fair |
| Montevue Lane over Tributary 96 No. 200000F-F-26020 | 1.2 Mi. W of US 15 | 1995 | Culvert | 31 ft | 6,880 | Good |
| Montevue Lane over Carroll Creek No. 200000F-F-27020 | 1.1 Mi. W of US 15 | 1995 | Culvert | 50 ft | 6,880 | Fair |
| Md 144FA over Carroll Creek No. 100000100036010 | 0.02 M E of Bentz ST | 1994 | Slab | 104 ft | 6,869 | Good |
| Shookstown Road over Carroll Creek No. 200000F-F-12010 | 0.4 MI N. of US 15 Exit 7 | 1911 | Stringer/Multi-beam or Girder | 49 ft | 6,750 | Poor |
| Md 85 over Rocky Fountain Run No. 100000100013010 | 0.03 Mile North of Md 880 | 1929 | Slab | 26 ft | 6,713 | Fair |
| Md 75 over Bush Creek No. 100000100044010 | .65 Mile South of Md 75FB | 1972 | Stringer/Multi-beam or Girder | 86 ft | 6,492 | Fair |
| Biggs Ford Road over Monocacy River No. 200000F-2604010 | 0.55 MI E of US RTE 15 | 1970 | Stringer/Multi-beam or Girder | 500 ft | 6,393 | Fair |
| Executive Way over Ballenger Creek No. 200000F-0217010 | 0.1 MI West of Md 85 | 2007 | Stringer/Multi-beam or Girder | 282 ft | 6,345 | Good |
| Yellow Springs Roa over Little Tuscarora Creek No. 200000F-2113010 | 0.1 MI N Walter Martz RD | 1930 | Slab | 24 ft | 6,340 | Fair |
| Hayward Road over Opossum Branch No. 200000F-F-35020 | 0.7 Miles West of US 15 | 1990 | Culvert | 39 ft | 6,312 | Fair |
| Corporate Drive over Arundel Branch No. 200000F-0204030 | 0.25 MI W of New Design R | 1990 | Culvert | 54 ft | 6,273 | Good |
| Md 28 over Br of Potomac River No. 100000100015010 | 0.58 MI E of Rock Hall RD | 1937 | Slab | 21 ft | 6,272 | Fair |
| Md 28 over Washington Run No. 100000100016010 | 1.05 Miles East of US 15 | 2008 | Slab | 42 ft | 6,272 | Fair |
| Md 17 over CSX Trans. Potomac Mun No. 100000100024010 | On Virginia Line | 1953 | Girder and Floorbeam System | 2,430 ft | 6,073 | Fair |
| Motter Ave over US 15 No. 100000100098010 | 0.53 MI S of Md 26 | 2014 | Stringer/Multi-beam or Girder | 289 ft | 6,041 | Good |
| Corporate Drive over Pike Branch No. 200000F-0211030 | 0.39 MI East of Ballenger | 1993 | Culvert | 42 ft | 5,986 | Good |
| Corporate Drive over Pike Branch No. 200000F-0212030 | 0.40 MI East of Ballenger | 1993 | Culvert | 42 ft | 5,986 | Good |
| Waverly Drive over Rock Creek No. 200000F-F-23030 | 0.5 Miles North of US 40 | 1971 | Culvert | 37 ft | 5,943 | Fair |
| Highland Street over Carroll Creek No. 200000F-F-02020 | 0.9 MI East of Md 355 | 1988 | Slab | 111 ft | 5,850 | Fair |
| Mount Phillip Road over Branch of Rock Creek No. 200000F-2402030 | 230 S of US Alt 40 | 1980 | Culvert | 20 ft | 5,847 | Fair |
| Monocacy Boulevard over US 15 No. 100000100197010 | 1 MI N of Md 26 | 2018 | Stringer/Multi-beam or Girder | 222 ft | 5,800 | Good |
| Boyers Mill Road over Lake Linganore No. 200000F-1301010 | 1.8 MI S of Gas House Pk | 2017 | Tee Beam | 307 ft | 5,776 | Good |
| Md 140 over Monocacy River No. 100000100065010 | On Carroll CO Line | 2013 | Slab | 172 ft | 5,655 | Good |
| US 40 over Middle Creek No. 100000100031010 | 0.12 Mile East of Md 17 | 1936 | Arch - Deck | 122 ft | 5,522 | Fair |
| US 40 over Little Catoctin Creek No. 100000100032010 | 0.2 M E of Harmony Road | 1936 | Arch - Deck | 38 ft | 5,522 | Fair |
| US 40 over Trib to Hawbottom Branch No. 100000100033010 | 0.29 MI E of Hollow Road | 1936 | Tee Beam | 35 ft | 5,522 | Fair |
| Md 26 over Dollyhyde Creek No. 100000100027010 | 0.34 Mile East of Md 31 | 1932 | Slab | 21 ft | 5,482 | Fair |
| Md 26 over Linganore Creek No. 100000100167030 | 0.22 M W of Br No 1016800 | 1950 | Culvert | 66 ft | 5,482 | Fair |
| Md 17 over Catoctin Creek No. 100000100018010 | 0.6 M S of Maerk Road | 1934 | Truss - Thru | 146 ft | 5,450 | Fair |
| US 40 over Catoctin Creek No. 100000100030010 | 0.17 Mile West of Md 17 | 1936 | Arch - Deck | 50 ft | 5,432 | Fair |
| Mt Zion Road over US 15/US 340 No. 100000100150010 | 1.55 MI N of US 340 | 1968 | Stringer/Multi-beam or Girder | 214 ft | 5,420 | Fair |
| Spring Ridge Prkwy over Long Branch No. 200000F-0901030 | At Md 144 Intersection | 1991 | Culvert | 25 ft | 5,407 | Good |
| Md 26 over N Fork Linganore Creek No. 100000100028020 | 2.53 MI W of Carroll CO | 1950 | Culvert | 42 ft | 5,272 | Fair |
| Md 26 over Branch of Linganore Cree No. 100000100168030 | 0.58 M W Albaugh Road | 1950 | Culvert | 99 ft | 5,272 | Fair |
| Mt Phillip Road over Is 70 No. 100000100126010 | 1.77 MI W of Md 180 | 1967 | Stringer/Multi-beam or Girder | 232 ft | 5,102 | Fair |
| Christophers Cross over Tributary of Tuscarora C No. 200000F-F-47010 | West of Thomas Johnson DR | 2004 | Arch - Deck | 80 ft | 4,896 | Good |
| Md 75 over Linganore Creek No. 100000100042010 | 0.73 MI N of Md 75FC | 1968 | Stringer/Multi-beam or Girder | 124 ft | 4,752 | Fair |
| Md 180 over Catoctin Creek No. 100000100082010 | 0.55 Mile East of Md 872 | 1928 | Arch - Deck | 207 ft | 4,580 | Fair |
| Christophers Cross over Edison Branch No. 200000F-F-28020 | 2.7 Mi. West of US 15 | 1989 | Culvert | 20 ft | 4,532 | Fair |
| Md 140 over Middle Creek No. 100000100063010 | 0.72 MI S of Md 904G | 1932 | Tee Beam | 76 ft | 4,480 | Fair |
| Md 80 over Monocacy River No. 100000100059010 | 0.08 Mile East of Md 880 | 1973 | Stringer/Multi-beam or Girder | 500 ft | 4,472 | Fair |
| Md 180 over US 340 No. 100000100118010 | 0.13 Mile West of Md 872 | 1964 | Stringer/Multi-beam or Girder | 292 ft | 4,460 | Fair |
| Christophers Cross over Tributary 89 No. 200000F-F-49010 | 0.2 MI E of Water Martz R | 2019 | Arch - Deck | 78 ft | 4,430 | Good |
| Md 194 over Little Pipe Creek No. 100000100072010 | On Carroll CO Line | 1953 | Stringer/Multi-beam or Girder | 136 ft | 4,425 | Good |
| Md 464 (point of R over Little Catoctin Creek No. 100000100090010 | 2.16 Miles East of Md 17 | 2020 | Stringer/Multi-beam or Girder | 108 ft | 4,400 | Good |
| Md 77 over Hunting Creek No. 100000100052010 | 0.29 Mile West of US 15 | 1970 | Stringer/Multi-beam or Girder | 71 ft | 4,351 | Fair |
| Mill Island Pkwy over Tuscarora Creek No. 200000F-F-34010 | 0.9 Mi. North of Md 26 | 1996 | Stringer/Multi-beam or Girder | 186 ft | 4,274 | Fair |
| Walter Martz Road over Little Tuscarora Creek No. 200000F-F-03030 | 0.3 MI N of Poole Jones R | 2012 | Arch - Deck | 48 ft | 4,173 | Fair |
| Md 464 over Catoctin Creek No. 100000100091010 | 3.17 Miles East of Md 17 | 2010 | Stringer/Multi-beam or Girder | 303 ft | 4,040 | Good |
| Md 140 over Cattail Branch No. 100000100064020 | 0.74 MI N of Carroll CO | 1987 | Culvert | 64 ft | 4,001 | Good |
| Bartholows Road over Is 70 CSX Transportatio No. 100000100160010 | 2.26 MI E of Md 75 | 1974 | Stringer/Multi-beam or Girder | 665 ft | 3,994 | Fair |
| Key Parkway over Rock Creek No. 200000F-F-17020 | 500 W of Willowdale Dr. | 1990 | Culvert | 36 ft | 3,931 | Fair |
Structure types in Frederick County
| Stringer/Multi-beam or Girder | 194 | 40.0% |
| Culvert | 154 | 31.8% |
| Truss - Thru | 42 | 8.7% |
| Slab | 36 | 7.4% |
| Arch - Deck | 26 | 5.4% |
| Tee Beam | 11 | 2.3% |
| Box Beam or Girders - Multiple | 9 | 1.9% |
| Girder and Floorbeam System | 7 | 1.4% |
| Frame | 4 | 0.8% |
| Truss - Deck | 1 | 0.2% |
| Box Beam or Girders - Single or Spread | 1 | 0.2% |
Other counties in Maryland
- Allegany County 244
- Anne Arundel County 392
- Baltimore city 374
- Baltimore County 786
- Calvert County 34
- Caroline County 70
- Carroll County 205
- Cecil County 193
- Charles County 94
- Dorchester County 47
- Garrett County 140
- Harford County 276
- Howard County 312
- Kent County 44
- Montgomery County 522
- Prince George's County 576
- Queen Anne's County 88
- Somerset County 46
- St. Mary's County 50
- Talbot County 42
- Washington County 300
- Wicomico County 98
- Worcester County 82