FHWA NBI 2024 Inspection record Public-domain dataset

US 13 BUS SB

Carrying US 13 BUS SB over TONYTANK POND

0.34 MILE NORTH OF MD 513, Wicomico, Maryland

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
26 t Inventory load rating

Bridge Snapshot: US 13 BUS SB

The US 13 BUS SB bridge in Wicomico, Maryland carries US 13 BUS SB over TONYTANK POND. It was built in 1954, making it 72 years old today. The structure is built primarily of concrete and spans 12 sections, stretching 74.1 meters (243 feet) end to end. Daily traffic averages 11,029 vehicles, placing it in the heavily-trafficked tier of Maryland bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, 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 26.3 metric tons.

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

How US 13 BUS SB compares

▼ 24.8
Load rating vs Maryland average (51.1 t)
Bottom 9%
Lower load rating than 91% of Maryland bridges
100
Bridges in Wicomico · 6 in Poor condition
US 13 BUS SB 26.3 t
Maryland average 51.1 t

Live comparison across Maryland.

Historical Sufficiency Rating

PlainBridge-computed
64.4 / 100 - historical 50–79.9 band
Structural adequacy /55
40.1
Serviceability /30
11.0
Essentiality /15
13.3
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
26.3 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1954
Material
Concrete
Number of Spans
12
Structure Length
74.1 m (243 ft)
Deck Width
11.8 m (39 ft)
Owner
State Highway Agency
Avg Daily Traffic
11,029 vehicles/day
Structure Number
100000220005012

Condition Analysis

  • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether US 13 BUS SB 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 US 13 BUS SB against other structures in Wicomico 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 US 13 BUS SB?

US 13 BUS SB in Wicomico, Maryland has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is US 13 BUS SB inspected?

US 13 BUS SB'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 11,029 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. US 13 BUS SB 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 US 13 BUS SB?

US 13 BUS SB has an NBI inventory load rating of 26.3 metric tons.

Who is responsible for maintaining US 13 BUS SB?

US 13 BUS SB is owned and maintained by State Highway Agency.

How old is US 13 BUS SB and does age affect safety?

US 13 BUS SB was built in 1954, making it 72 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.