Total bridges
118
Public highway bridges in Montrose County
County profile · official public datasets
Montrose County, CO
118 public highway bridges tracked in the FHWA National Bridge Inventory: 36.4% rated Good, 61% Fair, 2.5% Poor.
- 118
- Public bridges
- 36.4%
- Good condition
- 2.5%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Montrose County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- Top 30%
- lowest Poor share in state
- 2.5%
- Poor-condition share
- 118
- public highway bridges
- 1980
- 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.
Montrose County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Montrose County ranks #19 of 64 Colorado counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.5%). Montrose County, Colorado contains 118 public highway bridges. Roughly 36.4% are rated “Good,” 61% “Fair,” and 2.5% “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
36.4%
43 of 118 rated 7-9
Fair condition
61%
72 of 118 rated 5-6
Poor condition
2.5%
3 of 118 rated 4 or below
In-state Poor-share rank
#19 of 64
Among Colorado counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 118 NBI-tracked bridges by lowest applicable component rating.
Good 36.4% (43)
Fair 61% (72)
Poor 2.5% (3)
Montrose County's Poor-condition bridges carry 763 vehicle crossings a day
That is 0.4% of the county's reported daily bridge traffic on 2.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 254 crossings a day against 1,587 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 118 of 118 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
35.6% of Montrose County's bridges have passed the 50-year mark
42 of the 118 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 36.4% 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 77.3% of the county's Poor-condition bridge traffic
SH 348 ML over IRONSTONE CANAL, built 1963, carries 590 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 3-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 763 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Montrose County's bridges were built
118 bridges with a recorded construction year, grouped by decade
- 1920s 3
1920–1929
3 bridges
- 1930s 4
1930–1939
4 bridges
- 1940s 3
1940–1949
3 bridges
- 1950s
1950–1959
16 bridges
- 1960s 9
1960–1969
9 bridges
- 1970s 10
1970–1979
10 bridges
- 1980s
1980–1989
33 bridges
- 1990s
1990–1999
20 bridges
- 2000s 6
2000–2009
6 bridges
- 2010s 10
2010–2019
10 bridges
- 2020s 4
2020–2029
4 bridges
What this shows Construction peaked in the 1980s, when 33 of the county's bridges still in the inventory were built, which is 28% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1980) matches the Colorado average (1982).
How Montrose County compares with Colorado's closest counties by inventory size
The 5 Colorado counties nearest Montrose County in number of bridges, with their condition splits. Its 2.5% Poor share is the 3rd-lowest of these 6. Its average build year of 1980 against a peer-group mean of 1975 is 5 years newer.
Showing the 5 closest of 63 Colorado counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Kit Carson County | 130 | 30.8% | 67.7% | 1.5% | 1970 |
| Lincoln County | 129 | 17.8% | 74.4% | 7.8% | 1977 |
| Montrose County (this page) | 118 | 36.4% | 61% | 2.5% | 1980 |
| Baca County | 106 | 21.7% | 72.6% | 5.7% | 1963 |
| La Plata County | 102 | 54.9% | 43.1% | 2% | 1986 |
| Gunnison County | 100 | 36% | 57% | 7% | 1981 |
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 Montrose 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 Montrose County, both outside Colorado so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside CO (118 bridges here).
- Autauga County, AL · 118 bridges
- Perry County, AR · 118 bridges
- Rabun County, GA · 118 bridges
- Johnson County, IL · 118 bridges
Similar average build year
Nearest mean year-built outside CO (1980 here).
- Tulsa County, OK · avg 1980 · 1,135 bridges
- Miami-Dade County, FL · avg 1980 · 1,057 bridges
- Pulaski County, AR · avg 1980 · 721 bridges
- McLennan County, TX · avg 1980 · 714 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (118)
SH 141 ML
FairOver: DRAW
0.2 MI N OF URAVAN, Montrose, CO
Built 1956 Load: 34.0 t ADT: 260
JAY JAY ROAD
FairOver: UNCOMPAHGRE RIVER
6 MI NW OF MONTROSE, Montrose, CO
Built 1983 Load: 35.1 t ADT: 1,668
COUNTY ROAD AMBER
FairOver: WISE CREEK
1.7 MI NW OF PEA GREEN CO, Montrose, CO
Built 1991 Load: 35.2 t ADT: 78
CR 6400/RANGER RD
FairOver: MONTROSE AND DELTA CANAL
2 MI W OF US 550, Montrose, CO
Built 1983 Load: 35.4 t ADT: 264
SH 90 ML
FairOver: DRAW
2.2 MI E OF COLO-UTAH SL, Montrose, CO
Built 1956 Load: 35.6 t ADT: 260
SH 141 ML
FairOver: MESA CREEK
10 MI NW OF URAVAN, Montrose, CO
Built 1958 Load: 37.0 t ADT: 260
COUNTY ROAD R13
FairOver: DOLORES RIVER
6.4 MI NW OF URAVAN, Montrose, CO
Built 1953 Load: 37.2 t ADT: 253
COUNTY RD BANNER
FairOver: F N LATERAL CANAL
0.6 MI E OF PEA GREEN COR, Montrose, CO
Built 1960 Load: 39.1 t ADT: 137
COUNTY ROAD 79
FairOver: SAN MIGUEL RIVER
AT URAVAN/S OF SH 141, Montrose, CO
Built 1988 Load: 41.6 t ADT: 36
US 50 ML
FairOver: CEDAR CREEK
IN MONTROSE, Montrose, CO
Built 1958 Load: 43.9 t ADT: 14,000
MAPLE GROVE ROAD
FairOver: SPRING CREEK
.4 MI W OF CR 61, Montrose, CO
Built 1980 Load: 44.9 t ADT: 376
SH 348 ML
FairOver: DRY CREEK
2 MI W of Olathe, Montrose, CO
Built 1982 Load: 46.4 t ADT: 940
SH 90 ML
FairOver: UNCOMPAHGRE RIVER
0.5 MI WEST OF MONTROSE, Montrose, CO
Built 1969 Load: 48.6 t ADT: 12,000
MIAMI RD.
FairOver: LOUTSENHIZER CANAL
.30 MI E. OF HILLCREST DR, Montrose, CO
Built 2006 Load: 51.3 t ADT: 797
COUNTY ROAD 118
FairOver: HIEROGLYPHIC CANYON
1.5 MI SE OF URAVAN, Montrose, CO
Built 1991 Load: 56.4 t ADT: 10
COUNTY ROAD Y11
FairOver: EAST PARADOX CREEK
.5 MI N OF SH 90, Montrose, CO
Built 1992 Load: 56.5 t ADT: 10
COUNTY ROAD V19
FairOver: TABEGUACHE CREEK
.35 MI E OF SH 141, Montrose, CO
Built 1998 Load: 57.2 t ADT: 4
SH 348 ML
FairOver: Montrose & Delta Can
2.1 MI SE OF PEA GREEN CO, Montrose, CO
Built 1963 Load: 60.9 t ADT: 270
SH 90 ML
FairOver: DRAW
2.2 MI E OF COLO-UTAH SL, Montrose, CO
Built 1956 Load: 84.2 t ADT: 260
SH 141 ML
FairOver: DRAW
20.1 MI NW OF URAVAN, Montrose, CO
Built 1958 Load: 89.8 t ADT: 260
SH 348 ML
FairOver: IRONSTONE CANAL
1.5 MI W of Olathe, Montrose, CO
Built 1930 Load: 96.9 t ADT: 940
US 50 ML
FairOver: LOUTZENHEIZER WASH
0.8 MI SE OF DELTA-MONTRO, Montrose, CO
Built 1989 Load: 99.9 t ADT: 13,000
Blossom Road
GoodOver: Uncompahgre River
2.8 MI NW of Olathe, Montrose, CO
Built 2022 Load: 17.8 t ADT: 391
HILLCREST DRIVE
GoodOver: MONTROSE ARROYO
0.1 MI S OF E NIAGARA RD., Montrose, CO
Built 2006 Load: 19.1 t ADT: 5,233
Morrow Dam Road
GoodOver: Cimmaron Creek
Cimmaron Colorado, Montrose, CO
Built 1970 Load: 20.4 t ADT: 100
SH 348 ML
GoodOver: IRONSTONE CANAL
2.7 MI W of Olathe, Montrose, CO
Built 1982 Load: 21.8 t ADT: 940
N MESA RD (6450RD)
GoodOver: CEDAR CREEK
0.4 MI NE of SAN JUAN, Montrose, CO
Built 2005 Load: 22.1 t ADT: 4,087
COUNTY ROAD EE22
GoodOver: SAN MIGUEL RIVER
1.6 MI SE OF URAVAN, Montrose, CO
Built 2016 Load: 22.7 t ADT: 11
US 50 ML
GoodOver: CEDAR CREEK
3 MI EAST OF MONTROSE, Montrose, CO
Built 1958 Load: 24.5 t ADT: 5,000
SH 90 ML
GoodOver: Montrose & Delta Canal
4.9 MI WEST OF MONTROSE, Montrose, CO
Built 1999 Load: 26.5 t ADT: 300
US 550 ML NBND
GoodOver: UNCOMPAHGRE RIVER
S EDGE OF MONTROSE, Montrose, CO
Built 1976 Load: 29.3 t ADT: 6,500
US 50 ML
GoodOver: CIMARRON RIVER
E. EDGE OF CIMARRON, Montrose, CO
Built 1971 Load: 29.8 t ADT: 4,300
Morrow Dam Road
GoodOver: Cimarron River
Approx .1 mi E Cimarron, Montrose, CO
Built 1970 Load: 30.5 t ADT: 150
COUNTY ROAD 7
GoodOver: MONTROSE AND DELTA CANAL
JUST W OF SH 550, Montrose, CO
Built 1994 Load: 30.8 t ADT: 115
DALIA ROAD
GoodOver: DRY CREEK
.5 MI W OF CR 5700, Montrose, CO
Built 1992 Load: 31.1 t ADT: 241
US 550 ML
GoodOver: HORSEFLY CREEK
7.5 MI NO OF OURAY-MONTRO, Montrose, CO
Built 1994 Load: 32.3 t ADT: 13,000
Morrow Pt. Dam Rd
GoodOver: Cimmaron Creek
Cimmmaron Colorado, Montrose, CO
Built 1985 Load: 32.4 t ADT: 30
COUNTY ROAD 5800
GoodOver: IRONSTONE CANAL
.15 MI S OF SH348, Montrose, CO
Built 1992 Load: 32.6 t ADT: 62
COUNTY ROAD 2700
GoodOver: TUTTLE DRAW
1.5 MI N OF CR CC, Montrose, CO
Built 2013 Load: 32.7 t ADT: 116
Birch Street
GoodOver: Loutsenhizer Canal
0.1 Mi E of S Hillcrest, Montrose, CO
Built 2022 Load: 32.7 t ADT: 64
COUNTY ROAD 5875
GoodOver: MONTROSE AND DELTA CANAL
.3 MI S OF MAPLEGROVE, Montrose, CO
Built 1940 Load: 32.8 t ADT: 466
COUNTY ROAD 5825
GoodOver: IRONSTONE CANAL
1.2 MI W OF OLATHE, Montrose, CO
Built 1996 Load: 33.6 t ADT: 591
COUNTY ROAD 5500
GoodOver: BIG SANDY WASH
.5 MI N OF HICKORY RD, Montrose, CO
Built 2013 Load: 34.3 t ADT: 141
HICKORY ROAD
GoodOver: MONTROSE CANAL
AT INTERSECTION CR 5550, Montrose, CO
Built 2012 Load: 35.0 t ADT: 300
US 550 ML SBND
GoodOver: UNCOMPAGRE RIVER
1.7 MI S OF MONTROSE, Montrose, CO
Built 2002 Load: 35.3 t ADT: 6,500
COUNTY ROAD 6530
GoodOver: LOUTSENHIZER CANAL
.4 MI N OF FLAT TOP RD, Montrose, CO
Built 2009 Load: 36.5 t ADT: 72
US 550 ML
GoodOver: MONTROSE+DELTA CANAL
4.5 MI S OF MONTROSE, Montrose, CO
Built 1992 Load: 36.5 t ADT: 11,000
TROUT ROAD
GoodOver: UNCOMPAHGRE RIVER
0.25 M E OF SH 550, Montrose, CO
Built 1989 Load: 36.6 t ADT: 259
COUNTY ROAD II35
GoodOver: NATURITA CREEK
1 MI S OF REDVALE, Montrose, CO
Built 1991 Load: 36.7 t ADT: 31
SH 348 ML
GoodOver: Ironstone Canal
4.7 MI W of Olathe, Montrose, CO
Built 2001 Load: 36.7 t ADT: 270
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.