MIDCOUNTY HWY & MI
Carrying MIDCOUNTY HWY & MI over MILL CREEK
.5 MI W OF SHADY GROVE RD, Montgomery, Maryland
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: MIDCOUNTY HWY & MI
The MIDCOUNTY HWY & MI bridge in Montgomery, Maryland carries MIDCOUNTY HWY & MI over MILL CREEK. It was built in 1984, making it 42 years old today. It was last reconstructed in 1990, extending its service life. The structure is built primarily of steel, stretching 19.5 meters (64 feet) end to end. Daily traffic averages 31,600 vehicles, placing it in the heavily-trafficked tier of Maryland bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 99.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How MIDCOUNTY HWY & MI compares
Live comparison across Maryland.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1984
- Last Reconstructed
- 1990
- Material
- Steel
- Structure Length
- 19.5 m (64 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 31,600 vehicles/day
- Structure Number
- 200000M-0219030
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
MIDCOUNTY HWY & MI is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare MIDCOUNTY HWY & MI against other structures in Montgomery and across Maryland. Maryland bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for MIDCOUNTY HWY & MI?
MIDCOUNTY HWY & MI in Montgomery, Maryland on the FHWA's 0–9 scale.
How often is MIDCOUNTY HWY & MI inspected?
MIDCOUNTY HWY & MI's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 31,600 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MIDCOUNTY HWY & MI is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for MIDCOUNTY HWY & MI?
MIDCOUNTY HWY & MI has an NBI inventory load rating of 99.9 metric tons.
Who is responsible for maintaining MIDCOUNTY HWY & MI?
MIDCOUNTY HWY & MI is owned and maintained by County Highway Agency.
How old is MIDCOUNTY HWY & MI and does age affect safety?
MIDCOUNTY HWY & MI was built in 1984, making it 42 years old and last reconstructed in 1990.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge 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.