FHWA NBI 2024 Inspection record Public-domain dataset

I-170 EB RAMP

Carrying I-170 EB RAMP over ACCESS ROAD

I-170 EB RAMP OVER ACCESS, Baltimore city, Maryland

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
33 t Inventory load rating

Bridge Snapshot: I-170 EB RAMP

The I-170 EB RAMP bridge in Baltimore city, Maryland carries I-170 EB RAMP over ACCESS ROAD. It was built in 1979, making it 47 years old today. The structure is built primarily of concrete and spans 1 section, stretching 9.4 meters (31 feet) end to end. Daily traffic averages 1,305 vehicles, placing it in the moderately-trafficked tier of Maryland bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 5/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 32.7 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How I-170 EB RAMP compares

▼ 18.4
Load rating vs Maryland average (51.1 t)
Bottom 17%
Lower load rating than 83% of Maryland bridges
380
Bridges in Baltimore city · 27 in Poor condition
I-170 EB RAMP 32.7 t
Maryland average 51.1 t

Live comparison across Maryland.

Historical Sufficiency Rating

PlainBridge-computed
88.6 / 100 - historical 80–100 band
Structural adequacy /55
45.0
Serviceability /30
29.0
Essentiality /15
14.6
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
32.7 t
NBI inventory level (metric tons)
Overall Condition
Fair

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1979
Material
Concrete
Number of Spans
1
Structure Length
9.4 m (31 ft)
Deck Width
13.4 m (44 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,305 vehicles/day
Structure Number
200000BC1107010

Condition Analysis

  • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.

How to read this record

This page shows what the last federal inspection recorded, not whether I-170 EB RAMP is safe to cross today. Here is how to use it.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
  • Compare I-170 EB RAMP against other structures in Baltimore city 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 I-170 EB RAMP?

I-170 EB RAMP in Baltimore city, Maryland has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is I-170 EB RAMP inspected?

I-170 EB RAMP'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 1,305 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. I-170 EB RAMP is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for I-170 EB RAMP?

I-170 EB RAMP has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining I-170 EB RAMP?

I-170 EB RAMP is owned and maintained by City/Municipal Highway Agency.

How old is I-170 EB RAMP and does age affect safety?

I-170 EB RAMP was built in 1979, making it 47 years old.

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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.