Total bridges
259
Public highway bridges in Hampshire County
County profile · official public datasets
Hampshire County, MA
259 public highway bridges tracked in the FHWA National Bridge Inventory: 25.1% rated Good, 66% Fair, 8.9% Poor.
- 259
- Public bridges
- 25.1%
- Good condition
- 8.9%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Hampshire County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 9th
- of 13 on Poor share
- 8.9%
- Poor-condition share
- 259
- public highway bridges
- 1959
- avg year built
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
Hampshire County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Hampshire County ranks #9 of 13 Massachusetts counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.9%). Hampshire County, Massachusetts contains 259 public highway bridges. Roughly 25.1% are rated “Good,” 66% “Fair,” and 8.9% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Good condition
25.1%
65 of 259 rated 7-9
Fair condition
66%
171 of 259 rated 5-6
Poor condition
8.9%
23 of 259 rated 4 or below
In-state Poor-share rank
#9 of 13
Among Massachusetts counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 259 NBI-tracked bridges by lowest applicable component rating.
Good 25.1% (65)
Fair 66% (171)
Poor 8.9% (23)
Hampshire County's Poor-condition bridges carry 148,211 vehicle crossings a day
That is 8.4% of the county's reported daily bridge traffic on 8.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 6,737 crossings a day against 4,366 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 258 of 259 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
75.7% of Hampshire County's bridges have passed the 50-year mark
196 of the 259 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 25.1% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
One structure carries 20.1% of the county's Poor-condition bridge traffic
I 91 SB over COMB US 5 & GWRR, built 1965, carries 29,780 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 23-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 148,211 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Hampshire County's bridges were built
259 bridges with a recorded construction year, grouped by decade
- pre-1900 8
Built before 1900
8 bridges
- 1900s 2
1900–1909
2 bridges
- 1910s 6
1910–1919
6 bridges
- 1920s 17
1920–1929
17 bridges
- 1930s
1930–1939
36 bridges
- 1940s 22
1940–1949
22 bridges
- 1950s
1950–1959
60 bridges
- 1960s
1960–1969
38 bridges
- 1970s 12
1970–1979
12 bridges
- 1980s 7
1980–1989
7 bridges
- 1990s 13
1990–1999
13 bridges
- 2000s 21
2000–2009
21 bridges
- 2010s 13
2010–2019
13 bridges
- 2020s 4
2020–2029
4 bridges
What this shows Construction peaked in the 1950s, when 60 of the county's bridges still in the inventory were built, which is 23.2% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year (1959) matches the Massachusetts average (1961).
How Hampshire County compares with Massachusetts's closest counties by inventory size
The 5 Massachusetts counties nearest Hampshire County in number of bridges, with their condition splits. Its 8.9% Poor share is the 4th-lowest of these 6. Its average build year of 1959 against a peer-group mean of 1961 is in line with the group.
Showing the 5 closest of 12 Massachusetts counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Essex County | 395 | 15.9% | 66.8% | 17.2% | 1957 |
| Bristol County | 384 | 30.2% | 63.3% | 6.5% | 1962 |
| Norfolk County | 343 | 23.6% | 71.4% | 5% | 1962 |
| Franklin County | 314 | 34.4% | 54.5% | 11.1% | 1964 |
| Plymouth County | 287 | 30.7% | 63.4% | 5.9% | 1960 |
| Hampshire County (this page) | 259 | 25.1% | 66% | 8.9% | 1959 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Hampshire County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Hampshire County, both outside Massachusetts so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside MA (259 bridges here).
- Apache County, AZ · 259 bridges
- Gila County, AZ · 259 bridges
- Ellsworth County, KS · 259 bridges
- Dakota County, MN · 259 bridges
Similar average build year
Nearest mean year-built outside MA (1959 here).
- Tulare County, CA · avg 1959 · 589 bridges
- Barton County, KS · avg 1959 · 449 bridges
- Nassau County, NY · avg 1959 · 328 bridges
- Marion County, KS · avg 1959 · 324 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (171)
ST 10 NORTHMPTN ST
FairOver: WATER MANHAN RIVER
1.3 M S EASTHAMPTON T.L., Hampshire, MA
Built 1951 Load: 35.6 t ADT: 31,100
HWY LOUDVILLE RD
FairOver: WATER N BR MANHAN RIVER
JCT MINERAL STREET, Hampshire, MA
Built 1992 Load: 35.7 t ADT: 1,034
I 91 SB
FairOver: HWY ISLAND RD
MM 21.7 ON I-91 SB, Hampshire, MA
Built 1965 Load: 36.0 t ADT: 27,446
I 91 NB
FairOver: HWY ISLAND RD
MM 21.7 ON I-91 NB, Hampshire, MA
Built 1965 Load: 36.0 t ADT: 27,903
HWY OLD BLCHRTN
FairOver: WATER BEAVER BROOK
1.5 M W OF RT32 NEAR PLMR, Hampshire, MA
Built 1938 Load: 36.0 t ADT: 905
HWY BAY RD
FairOver: WATER HARTS BROOK
.75 MI E OF RTE 47, Hampshire, MA
Built 1940 Load: 36.1 t ADT: 8,793
HWY MALBOUEF RD
FairOver: WATER FLAT BROOK
0.5MI S OF RT32 NR WRE RV, Hampshire, MA
Built 1956 Load: 36.2 t ADT: 100
HWY PINE ST
FairOver: WATER MILL RIVER
300 E INT FLORENCE RD, Hampshire, MA
Built 1850 Load: 36.7 t ADT: 14,741
HWY S MAIN ST
FairOver: WATER MILL RIVER
JUST N OF NORTHAMPTON, Hampshire, MA
Built 1922 Load: 36.7 t ADT: 1,200
ST141 COTTAGE ST
FairOver: WATER NASHAWANNUCK POND
500 FT W OF ADAMS ST, Hampshire, MA
Built 1957 Load: 36.8 t ADT: 21,466
HWY RUSSLVLLE RD
FairOver: WATER SACKET BROOK
NEAR WSTFLD/MONTGMRY T.L., Hampshire, MA
Built 1938 Load: 37.2 t ADT: 1,164
I 91 SB
FairOver: COMB I 91 RAMP & GWRR
MM 25.8 ON I-91 SB, Hampshire, MA
Built 1963 Load: 37.3 t ADT: 12,026
ST 47 RIVER DRIVE
FairOver: WATER MILL RIVER
3.2 M S SUNDERLAND T.L., Hampshire, MA
Built 1937 Load: 37.5 t ADT: 4,700
ST 9 BERKSHIRE TR
FairOver: WATER WESTFIELD RIVER
200 E JCT STAGE RD., Hampshire, MA
Built 1958 Load: 37.8 t ADT: 2,685
HWY MORGAN ST
FairOver: WATER STONY BROOK
1 M E OF RT 116, Hampshire, MA
Built 1997 Load: 37.8 t ADT: 8,664
HWY PRRY HLL CRS
FairOver: WATER N BR MANHAN RIVER
.1 MI SW OF KINGS HWY, Hampshire, MA
Built 1956 Load: 37.9 t ADT: 388
HWY PLAINFLD RD
FairOver: WATER WESTFIELD RIVER
BETWEEN NASH RD & MAIN ST, Hampshire, MA
Built 1939 Load: 38.2 t ADT: 429
HWY SUNDRLAND RD
FairOver: WATER MILL RIVER
.7 MI E HADLEY, Hampshire, MA
Built 1926 Load: 38.9 t ADT: 6,078
ST 9 BELCHERTN RD
FairOver: WATER FLAT BROOK
100 E JCT DOANE RD., Hampshire, MA
Built 1956 Load: 38.9 t ADT: 6,898
HWY RCKY HILL RD
FairOver: ST116
.4 M W AMHERST T.L., Hampshire, MA
Built 1958 Load: 39.6 t ADT: 12,931
ST143 CHESTRFLD RD
FairOver: WATER MEEKINS BROOK
.2 M W JCT ST 9, Hampshire, MA
Built 1931 Load: 39.7 t ADT: 1,857
ST 32 WEST ST
FairOver: WATER MUDDY BROOK
.1 M W JCT VERNON ST., Hampshire, MA
Built 1966 Load: 39.9 t ADT: 29,870
HWY MEADOW ST
FairOver: WATER MILL RIVER
125 W OF JCT. CORTICELLI, Hampshire, MA
Built 1977 Load: 40.2 t ADT: 3,571
HWY NORTHWEST RD
FairOver: WATER ROBERTS MEADOW BRK
AT JCT CHESTERFIELD ROAD, Hampshire, MA
Built 1938 Load: 40.9 t ADT: 776
ST143 CHESTRFLD RD
FairOver: WATER W BR MILL RIVER
@ JCT. OF ROUTES 143 & 9, Hampshire, MA
Built 1931 Load: 41.0 t ADT: 1,942
HWY JACKSON ST
FairOver: OTHER NORTHAMPTON BK WAY
0.15 M N OF PROSPECT ST, Hampshire, MA
Built 1890 Load: 41.1 t ADT: 7,682
HWY MAIN ST LEED
FairOver: WATER MILL RIVER
JCT ARCH ST, Hampshire, MA
Built 1925 Load: 42.2 t ADT: 1,500
HWY FERRY ST
FairOver: WATER LOWER MILL POND
.1 MI E OF PLEASANT ST, Hampshire, MA
Built 1880 Load: 42.4 t ADT: 6,611
ST 9 WEST MAIN ST
FairOver: WATER MUDDY BROOK
100 E JCT VERNON ST, Hampshire, MA
Built 1958 Load: 42.4 t ADT: 6,331
ST 9 /ST32/E MAIN
FairOver: WATER UTILITY CANAL
INT OF E.MAIN & PLEASANT, Hampshire, MA
Built 1992 Load: 43.3 t ADT: 14,224
HWY ALLEN RD
FairOver: WATER JABISH BROOK
350 E OF RT 202 INT, Hampshire, MA
Built 1939 Load: 44.2 t ADT: 2,716
ST 32 WEST ST
FairOver: WATER FLAT BROOK
.1 M W JCT TOWNE ST., Hampshire, MA
Built 1971 Load: 45.4 t ADT: 14,134
HWY STAGE RD
FairOver: WATER MILL BROOK
0.5 MI W OF PLAINFIELD RD, Hampshire, MA
Built 1988 Load: 46.0 t ADT: 129
ST 9 GOSHEN RD
FairOver: WATER W BR MILL RIVER
.1MI W OF JCT W/STRTE 143, Hampshire, MA
Built 2002 Load: 47.1 t ADT: 5,468
ST 10 COLLEGE HWY
FairOver: WATER MANHAN RIVER
.8 M S SOUTHHAMPTON T.L., Hampshire, MA
Built 1986 Load: 47.6 t ADT: 19,138
HWY PELHAM RD
FairOver: WATER FORT RIVER
0.9 MI W PELHAM TL, Hampshire, MA
Built 1929 Load: 48.6 t ADT: 11,250
HWY ALDRICH ST
FairOver: WATER JABISH BROOK
0.5MI W OF RT181, Hampshire, MA
Built 1956 Load: 49.7 t ADT: 300
I 91 SB OFF RAMP
FairOver: US 5 /ST10/N KING ST
EXIT 26 SOUTHBOUND I-91, Hampshire, MA
Built 1963 Load: 49.9 t ADT: 3,792
US202 PURPLE HEART
FairOver: HWY BARDWELL ST
.4 M N CONN RIVER, Hampshire, MA
Built 1958 Load: 50.5 t ADT: 15,300
ST181 MILL VLLY RD
FairOver: WATER JABISH BROOK
1.8 MI SE OF RTE 202, Hampshire, MA
Built 1955 Load: 50.7 t ADT: 9,828
HWY INDIAN HLLW
FairOver: WATER CHAUNCEY BROOK
1.4 MI WEST OF SOUTH ST, Hampshire, MA
Built 1938 Load: 52.0 t ADT: 120
HWY WATER ST
FairOver: WATER ROBERTS MEADOW BRK
0.1M S OF RESERVOIR RD, Hampshire, MA
Built 1929 Load: 52.1 t ADT: 646
US202 GRANBY RD
FairOver: ST116 NEWTON ST
.9 M N CONN RIVER, Hampshire, MA
Built 1958 Load: 52.4 t ADT: 14,700
HWY OLD CHSTRFLD
FairOver: WATER WEBSTER BROOK
.3 MI E OF SUGAR HL. RD., Hampshire, MA
Built 1989 Load: 53.1 t ADT: 517
ST116 AMHERST RD
FairOver: WATER BACHELOR BROOK
.3 M S GRANBY-HADLEY T.L., Hampshire, MA
Built 1956 Load: 56.7 t ADT: 8,534
HWY PORTER ST
FairOver: WATER BATCHELOR BROOK
433 N OF ALDRICH ST, Hampshire, MA
Built 1956 Load: 59.0 t ADT: 388
HWY VALLEY RD
FairOver: WATER MOOSE BROOK
0.4 M E OF RT10 NR WSTFLD, Hampshire, MA
Built 1956 Load: 59.2 t ADT: 260
HWY GOSS HILL RD
FairOver: WATER M BR WESTFIELD RIV
@ LITTLEVILLE RD INTER., Hampshire, MA
Built 1900 Load: 61.0 t ADT: 1,034
I 91 NB
FairOver: WATER MILL RIVER
AT EXIT #22 I-91, Hampshire, MA
Built 1963 Load: 61.5 t ADT: 17,181
I 91 SB
FairOver: WATER MILL RIVER
1.3 M S WHTLY-HTFLD T.L., Hampshire, MA
Built 1963 Load: 61.5 t ADT: 18,119
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.