FHWA NBI 2024 Inspection record Public-domain dataset

CR 4620

Carrying CR 4620 over Post Oak Creek

0.4 Mi E of SH 19, Delta, Texas

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
24 t Inventory load rating

Bridge Snapshot: CR 4620

The CR 4620 bridge in Delta, Texas carries CR 4620 over Post Oak Creek. It was built in 1921, making it 105 years old today. The structure is built primarily of steel and spans 2 sections, stretching 11.1 meters (36 feet) end to end. Daily traffic averages 40 vehicles, placing it in the lower-traffic tier of Texas bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, 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 23.6 metric tons.

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

How CR 4620 compares

▼ 4.7
Load rating vs Texas average (28.3 t)
Bottom 4%
Lower load rating than 96% of Texas bridges
99
Bridges in Delta
CR 4620 23.6 t
Texas average 28.3 t

Live comparison across Texas.

Historical Sufficiency Rating

PlainBridge-computed
68.5 / 100 - historical 50–79.9 band
Structural adequacy /55
36.5
Serviceability /30
20.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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
5/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
23.6 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1921
Material
Steel
Number of Spans
2
Structure Length
11.1 m (36 ft)
Deck Width
5.2 m (17 ft)
Owner
County Highway Agency
Avg Daily Traffic
40 vehicles/day
Structure Number
010600AA0215001

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • 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 CR 4620 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 CR 4620 against other structures in Delta and across Texas. Texas 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 CR 4620?

CR 4620 in Delta, Texas has a deck rating of 6/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is CR 4620 inspected?

CR 4620'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 40 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CR 4620 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 CR 4620?

CR 4620 has an NBI inventory load rating of 23.6 metric tons.

Who is responsible for maintaining CR 4620?

CR 4620 is owned and maintained by County Highway Agency.

How old is CR 4620 and does age affect safety?

CR 4620 was built in 1921, making it 105 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.