Total bridges
710
Public highway bridges in Montgomery County
County profile · official public datasets
Montgomery County, TX
710 public highway bridges tracked in the FHWA National Bridge Inventory: 69.2% rated Good, 30.1% Fair, 0.7% Poor.
- 710
- Public bridges
- 69.2%
- Good condition
- 0.7%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Montgomery County pairs a better-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.
- Top 46%
- lowest Poor share in state
- 0.7%
- Poor-condition share
- 710
- public highway bridges
- 1998
- 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.
Montgomery County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Montgomery County ranks #114 of 247 Texas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 0.7%). Montgomery County, Texas contains 710 public highway bridges. Roughly 69.2% are rated “Good,” 30.1% “Fair,” and 0.7% “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
69.2%
491 of 710 rated 7-9
Fair condition
30.1%
214 of 710 rated 5-6
Poor condition
0.7%
5 of 710 rated 4 or below
In-state Poor-share rank
#114 of 247
Among Texas counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 710 NBI-tracked bridges by lowest applicable component rating.
Good 69.2% (491)
Fair 30.1% (214)
Poor 0.7% (5)
Montgomery County's Poor-condition bridges carry 910 vehicle crossings a day
That is 0% of the county's reported daily bridge traffic on 0.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 182 crossings a day against 14,619 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 710 of 710 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
12.1% of Montgomery County's bridges have passed the 50-year mark
86 of the 710 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 69.2% 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 44% of the county's Poor-condition bridge traffic
EDGEWATER DR over WINDCREST LAKE, built 2000, carries 400 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 5-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 910 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Montgomery County's bridges were built
710 bridges with a recorded construction year, grouped by decade
- 1920s 8
1920–1929
8 bridges
- 1930s 7
1930–1939
7 bridges
- 1940s 16
1940–1949
16 bridges
- 1950s 10
1950–1959
10 bridges
- 1960s 17
1960–1969
17 bridges
- 1970s 50
1970–1979
50 bridges
- 1980s
1980–1989
87 bridges
- 1990s
1990–1999
114 bridges
- 2000s
2000–2009
146 bridges
- 2010s
2010–2019
143 bridges
- 2020s
2020–2029
112 bridges
What this shows Construction peaked in the 2000s, when 146 of the county's bridges still in the inventory were built, which is 20.6% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1998, 18 years newer than the Texas average of 1980.
How Montgomery County compares with Texas's closest counties by inventory size
The 5 Texas counties nearest Montgomery County in number of bridges, with their condition splits. Its 0.7% Poor share is the 2nd-lowest of these 6. Its average build year of 1998 against a peer-group mean of 1987 is 11 years newer.
Showing the 5 closest of 246 Texas counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Fort Bend County | 795 | 72.8% | 24.7% | 2.5% | 1998 |
| El Paso County | 783 | 54.4% | 44.8% | 0.8% | 1986 |
| McLennan County | 714 | 51.8% | 46.2% | 2% | 1980 |
| Montgomery County (this page) | 710 | 69.2% | 30.1% | 0.7% | 1998 |
| Ellis County | 691 | 53.3% | 45.2% | 1.6% | 1987 |
| Bell County | 660 | 54.7% | 45% | 0.3% | 1984 |
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 Montgomery 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 Montgomery County, both outside Texas so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside TX (710 bridges here).
- Madison County, AL · 710 bridges
- Pinal County, AZ · 716 bridges
- Pulaski County, AR · 721 bridges
- Douglas County, OR · 699 bridges
Similar average build year
Nearest mean year-built outside TX (1998 here).
- Orange County, FL · avg 1998 · 885 bridges
- Pipestone County, MN · avg 1998 · 185 bridges
- Hyde County, NC · avg 1998 · 75 bridges
- Hertford County, NC · avg 1998 · 58 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (5)
OLD MONTGOMERY RD
PoorOver: LAKE CREEK
0.65 MI E OF FM 1486, Montgomery, TX
Built 1987 Load: 9.1 t ADT: 50
STINSON LANE
PoorOver: MOUND CREEK DRAW
0.28 MI W OF HIGHLINE DR, Montgomery, TX
Built 1984 Load: 17.2 t ADT: 160
EDGEWATER DR
PoorOver: WINDCREST LAKE
0.70 NW OF SUNRISE DR, Montgomery, TX
Built 2000 Load: 32.7 t ADT: 400
MEADOW WOOD GREEN
PoorOver: DAVIS BRANCH
0.4 MI S OF FOREST GREEN, Montgomery, TX
Built 2000 Load: 32.7 t ADT: 200
BETHEL RD
PoorOver: LITTLE LAKE CREEK
2.2 MI S OF SH 149, Montgomery, TX
Built 1990 Load: 32.7 t ADT: 100
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.