UNDERGROUND CONSTRUCTION CO INC
DBA UNDERGROUND CONSTRUCTION
301 power units471 driversInterstateBENICIA, CA
Data completeness & update times
Per official source. A failed read is not zero; “not yet imported” means the directory database has no stored copy yet — not “no authority” or “no insurance”.
| Section | Source | Source updated | Fetched | Status |
|---|---|---|---|---|
| Registration (Census) | az4n-8mr2 | 2026-10-10 PT | Oct 10, 08:46 AM PT | Read |
| Operating authority | inys-ebih | 2026-10-10 PT | Oct 10, 08:46 AM PT | Not provided by official source |
| Authority history | yu5v-wbh6 | 2026-10-10 PT | Oct 10, 08:46 AM PT | Not provided by official source |
| Insurance filings | c5y8-a4uz | 2026-10-10 PT | Oct 10, 08:46 AM PT | Not provided by official source |
| Insurance history | 3uet-3z4i | 2026-10-10 PT | Oct 10, 08:46 AM PT | Not provided by official source |
| Insurance history (legacy)Content frozen by FMCSA on 2026-05-14 (portal metadata 2026-10-10 is a republish, not new data); gap-fill only | 6sqe-dvqs | 2026-05-14 | Oct 10, 08:46 AM PT | Stale (source > 90 days) |
| Inspections, 24 moDriver-level 65 · vehicle-level 51 | fx4q-ay7w | 2026-10-10 PT | Oct 10, 08:46 AM PT | Read |
| Crashes, 24 mo | aayw-vxb3 | 2026-10-09 PT | Oct 10, 08:46 AM PT | Not provided by official source |
| Directory DB: authority copyLive official read above is used for the profile | carrier_authority | Not provided | — | Not yet imported |
| Directory DB: insurance copy | carrier_insurance | Not provided | — | Not yet imported |
VAX record reference score
Beta · trial v1Not an FMCSA rating, not a prediction and not a load decision. Thresholds are fixed and not yet calibrated.
Reference score (0–100)
Insufficient data
Coverage — determinable weight, not a score
60/100
Crashes, 24 mo (shown only, not scored)
0
Safety
Source: SMS AB PassProperty (4y6x-dmck) · raw queryDataset updated 2026-09-13 07:02 UTCFetched 2026-10-10 15:46 UTC
67
67
OOS 0
54
OOS 5
—
official, as published
0 out-of-service of 67 inspections
5 out-of-service of 54 inspections
Rate = OOS inspections ÷ inspections, from the SMS summary; N/A when there are 0 inspections. The SMS summary has no monthly series; the monthly chart below is built from record-level inspections. Roadside inspections are a sample, not the whole fleet.
Roadside inspections · record level
Source: Vehicle Inspection File (fx4q-ay7w) · raw queryDataset updated 2026-10-10 10:55 UTCFetched 2026-10-10 15:46 UTC
Window: 2024-10-10 → 2026-10-10 (24 months ending on the fetch date). Records FMCSA has not yet uploaded are not included.
65
1
65
with driver OOS 0 · 0.0%
51
with vehicle OOS 6 · 11.8%
Inspections per month (count)
- Vehicle-level inspections (I, II, V, VI)
- Driver-level inspections (I, II, III, VI)
Out-of-service rate by month (%)
- Vehicle OOS rate
- Driver OOS rate (dashed)
- Hollow point = fewer than 5 eligible inspections
Computed from record-level inspections in fx4q-ay7w (window 2024-10-10 → 2026-10-10, fetched 2026-10-10 15:46 UTC). OOS rate = inspections with driver/vehicle OOS > 0 ÷ inspections at a driver/vehicle-examining level — not violation counts. Months with no eligible inspection leave a gap (not 0%). The SMS summary is not used to build history.
Driver-level = Levels I, II, III, VI; vehicle-level = Levels I, II, V, VI (FMCSA North American Standard levels). Level IV special studies are in neither. These record-level counts can differ from the SMS summary above, which uses its own snapshot and is left unchanged.
| Date | State | Level | Violations | OOS | Driver viol/OOS | Vehicle viol/OOS | ID |
|---|---|---|---|---|---|---|---|
| 2026-10-07 | CA | 3 | 0 | 0 | 0 / 0 | 0 / 0 | 89199701 |
| 2026-10-01 | CA | 3 | 0 | 0 | 0 / 0 | 0 / 0 | 89151983 |
| 2026-09-25 | CA | 1 | 0 | 0 | 0 / 0 | 0 / 0 | 89159962 |
| 2026-09-25 | CA | 1 | 2 | 0 | 0 / 0 | 2 / 0 | 89106625 |
| 2026-09-23 | CA | 2 | 7 | 2 | 0 / 0 | 7 / 2 | 89088653 |
Reported crashes
Source: Crash File (aayw-vxb3) · raw queryDataset updated 2026-10-09 10:28 UTCFetched 2026-10-10 15:46 UTC
Window: 2024-10-10 → 2026-10-10 (24 months ending on the fetch date). Records FMCSA has not yet uploaded are not included.
0
0
0
0
The source responded with no crash reports in this window.
Crash reports are listed as filed by states; they do not determine fault or preventability. VIN, plate and exact location are not shown.
Equipment
Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-10 14:49 UTCFetched 2026-10-10 15:46 UTC
301
301
0
| Equipment | Owned | Term leased | Trip leased |
|---|---|---|---|
| Straight trucks | 298 | — | — |
| Truck tractors | 3 | — | — |
| Trailers | 425 | — | — |
- Owned
- Term leased
- Trip leased
Tractors and trailers are drawn separately and never merged into power units. A row with any empty field shows no share.
MCS-150 self-reported counts. “—” means the source field is empty, not zero.
Vehicles observed in roadside inspections
Units: FMCSA Inspections Per Unit (wt8s-2hbx)Decoder: NHTSA vPICDataset updated 2026-10-10 11:22 UTCFetched 2026-10-10 15:46 UTCWindow 2024-10-10 → 2026-10-10
65 inspection(s) → 74 unit row(s) → 39 unique vehicle(s) by VIN. Observed vehicles are not the full fleet and not proof of current ownership. Labels like PU-01 are anonymous; full VINs and plates are never shown.
Unique units
31
Decode coverage
100%
31/31
Average age
6.9 yr
n=31
Newest / oldest
2024 / 2013
Make
- FORD8
- PETERBILT8
- RAM8
- INTERNATIONAL4
- FREIGHTLINER1
- GM1
- KENWORTH1
Model year
- 20132
- 20143
- 20162
- 20171
- 20182
- 20193
- 20206
- 20217
- 20223
- 20242
Average age = 2026 − model year, over 31 unit(s) with a decoded year. Units without a decode are excluded from every share.
Unique units
8
Decode coverage
88%
7/8
Average age
9.4 yr
n=7
Newest / oldest
2025 / 2001
Make
- BIG TEX2
- CARSON TRAILER1
- INTERSTATE TRAILERS, INC.1
- MULTIQUIP1
- TRAIL KING INDUSTRIES1
- UTILITY TRAILER MANUFACTURER1
Model year
- 20011
- 20142
- 20191
- 20211
- 20221
- 20251
Average age = 2026 − model year, over 7 unit(s) with a decoded year. Units without a decode are excluded from every share.
| Unit | Make | Model | Year | Body class | Inspections | Last seen |
|---|---|---|---|---|---|---|
| PU-01 | PETERBILT | 337 | 2021 | Truck | 4 | 2026-10-07 |
| PU-02 | FORD | F-550 | 2019 | Incomplete - Chassis Cab (Single Cab) | 2 | 2026-09-25 |
| PU-03 | RAM | 5500 | 2013 | Incomplete - Chassis Cab (Number of Cab Unknown) | 1 | 2026-09-25 |
| PU-04 | RAM | 5500 | 2018 | Incomplete | 4 | 2026-09-23 |
| TR-01 | CARSON TRAILER | Carson Trailer | 2014 | Trailer | 1 | 2026-09-23 |
| PU-05 | PETERBILT | 348 | 2020 | Truck | 1 | 2026-08-17 |
| PU-06 | PETERBILT | 337 | 2016 | Truck | 1 | 2026-08-13 |
| PU-07 | FORD | F-450 | 2016 | Incomplete - Chassis Cab (Single Cab) | 1 | 2026-08-12 |
| TR-02 | MULTIQUIP | Multiquip | 2025 | Trailer | 1 | 2026-08-12 |
| PU-08 | INTERNATIONAL | HV607 | 2020 | Truck | 1 | 2026-08-11 |
Operations
Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-10 14:49 UTCFetched 2026-10-10 15:46 UTC
Interstate (A)
Classification: PRIVATE PROPERTY
2,859,000 mi
Reported year 2024
- General freight
- Motor vehicles
- Logs, poles, beams, lumber
- Building materials
- Machinery, large objects
- Utilities
- Construction
- Interstate drivers >100 mi / ≤100 mi
- 360 / 0
- Intrastate drivers >100 mi / ≤100 mi
- 111 / 0
- Hazmat indicator (hm_ind)
- N
- Registered address
- 5145 INDUSTRIAL WAY, BENICIA, CA, 94510, US
Lanes and service areas are not published by FMCSA. The registered address is not an operating map, and inspection states are observations only — not live routes or a service area.
Identity & Federal
Source: FMCSA Company Census (az4n-8mr2) · raw queryDataset updated 2026-10-10 14:49 UTCFetched 2026-10-10 15:46 UTC
- Legal name
- UNDERGROUND CONSTRUCTION CO INC
- DBA
- UNDERGROUND CONSTRUCTION
- USDOT
- 516591
- MC / FF / MX
- Not provided
- Physical address
- 5145 INDUSTRIAL WAY, BENICIA, CA, 94510, US
- Mailing address
- P O BOX 2000, BENICIA, CA, 94510, US
- Business type
- CORPORATION
- Carrier/shipper code
- C;S
- Census add date
- 1993-03-15
- MCS-150 filing date
- 2025-01-28
- Power units / drivers
- 301 / 471
- Latest review (type · date)
- Not provided
Federal activity
- 2025-01-28Census
Latest MCS-150 filing
- 1993-03-15Census
Added to FMCSA registration
Built only from dates in the sources above. Authority changes use FMCSA's own change date (yu5v-wbh6).
Changes observed by VAX monitoring
Loading…
FAQ
+What is UNDERGROUND CONSTRUCTION CO INC's USDOT number?
USDOT 516591; no MC/FF/MX docket is listed in the census record.
+Is UNDERGROUND CONSTRUCTION CO INC active?
The census registration status code is A. This is a registration code only — it is not operating authority, insurance coverage or a safety certification.
+How many trucks and drivers does UNDERGROUND CONSTRUCTION CO INC report?
301 power units and 471 drivers, self-reported on the MCS-150 filed 2025-01-28.
+Does UNDERGROUND CONSTRUCTION CO INC have insurance on file?
No row matched by DOT (with and without leading zeros) or MC. That alone does not prove there is no insurance — check FMCSA L&I.
+Where is UNDERGROUND CONSTRUCTION CO INC located?
Registered physical address: 5145 INDUSTRIAL WAY, BENICIA, CA, 94510, US. This is a registration address, not an operating area.
Answers are generated from the records on this page.
Nearby carriers
LIVE BOX DIGITAL
USDOT 79590904 power units · 16 drivers
PROVISIONS TRANSPORTATION LLC
USDOT 77244361 power units · 2 drivers
21 TRANSPORTATION L.L.C.
USDOT 66321161 power units · 1 drivers
JANDC ENTERPRISES LLC
USDOT 48213832 power units · 4 drivers
DOUBLE BARREL EXPRESS
USDOT 45684511 power units · 1 drivers
VINTNERS WAY TRANSPORT LLC
USDOT 45553282 power units · 2 drivers
Other census-active registrations in the same city, newest USDOT first. No ranking or relationship implied. · raw query · Fetched 2026-10-10 15:46 UTC
Sources
- FMCSA Company Census (az4n-8mr2)
- Carrier – All With History (6eyk-hxee)
- Motus Carrier daily (nakq-58th)
- Motus Insur – All With History (c5y8-a4uz)
- InsHist – All With History (6sqe-dvqs)
- SMS AB PassProperty (4y6x-dmck)
- Vehicle Inspection File (fx4q-ay7w)
- Crash File (aayw-vxb3)
Each section shows its own fetch time; official data may have changed since. Official records plus an explainable trial record reference score (beta, not an official rating; no total when data is insufficient). No ranking, risk labels or load recommendations. Listing does not imply partnership, endorsement or platform access.