County profile · official public datasets

Mobile County, AL

612 public highway bridges tracked in the FHWA National Bridge Inventory: 21.1% rated Good, 76.1% Fair, 2.8% Poor.

612
Public bridges
21.1%
Good condition
2.8%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Mobile County pairs a better-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

Top 46%
lowest Poor share in state
2.8%
Poor-condition share
612
public highway bridges
1980
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Mobile County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Mobile County ranks #31 of 67 Alabama counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.8%). Mobile County, Alabama contains 612 public highway bridges. Roughly 21.1% are rated “Good,” 76.1% “Fair,” and 2.8% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

Total bridges

612

Public highway bridges in Mobile County

Good condition

21.1%

129 of 612 rated 7-9

Fair condition

76.1%

466 of 612 rated 5-6

Poor condition

2.8%

17 of 612 rated 4 or below

In-state Poor-share rank

#31 of 67

Among Alabama counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 612 NBI-tracked bridges by lowest applicable component rating.

Good
21.1% (129)
Fair
76.1% (466)
Poor
2.8% (17)

Mobile County's Poor-condition bridges carry 66,988 vehicle crossings a day

That is 0.9% of the county's reported daily bridge traffic on 2.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 3,940 crossings a day against 6,342 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 603 of 612 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

42.5% of Mobile County's bridges have passed the 50-year mark

260 of the 612 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 21.1% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 28.9% of the county's Poor-condition bridge traffic

MCGREGOR AVE over ESLAVA CREEK, built 1964, carries 19,384 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 17-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 66,988 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Mobile County's bridges were built

612 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1960s, when 128 of the county's bridges still in the inventory were built, which is 20.9% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1980, 6 years newer than the Alabama average of 1974.

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Mobile County compares with Alabama's closest counties by inventory size

The 5 Alabama counties nearest Mobile County in number of bridges, with their condition splits. Its 2.8% Poor share is the 5th-lowest of these 6. Its average build year of 1980 against a peer-group mean of 1978 is in line with the group.

Showing the 5 closest of 66 Alabama counties eligible for comparison.

Bridge inventory size and condition shares for Mobile County and the 5 Alabama counties closest to it in inventory size
County Bridges Poor
Madison County 710 1.3%
Mobile County (this page) 612 2.8%
Montgomery County 596 2.2%
Tuscaloosa County 482 0.6%
Calhoun County 386 3.9%
Baldwin County 381 1.3%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Mobile County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Mobile County, both outside Alabama so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside AL (612 bridges here).

Similar average build year

Nearest mean year-built outside AL (1980 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 612 Good 129 Fair 466 Poor 17

All bridges (612)

SCHILLINGER ROAD

Good

Over: ILLINOIS CENTRAL RR

1.5 Miles South Of US 98, Mobile, AL

Built 2015 Load: 48.5 t ADT: 19,303

Baker St. Ext.

Good

Over: Southern Drain Canal

0.4M EAST I-10, Mobile, AL

Built 2014 Load: 48.6 t ADT: 150

Steel Drive EBL

Good

Over: US 43 NBL * SBL

1 MI S. MOB/WASH CO LINE, Mobile, AL

Built 2009 Load: 48.8 t ADT: 440

Steel Drive WBL

Good

Over: US 43 NBL * SBL

1 MI. S. MOB/WASH CO LINE, Mobile, AL

Built 2009 Load: 48.8 t ADT: 1,302

US 98

Good

Over: UNIVERSITY BLVD.

0.4 MI W OF OVERLOOK RD, Mobile, AL

Built 1997 Load: 48.9 t ADT: 33,195

DAVENPORT STREET

Good

Over: MAGNOLIA CREEK

630 W. HEMELY ROAD, Mobile, AL

Built 2000 Load: 49.6 t ADT: 552

SR 213

Good

Over: NORTON CREEK

1.0 MI. W. OF JCT US 43, Mobile, AL

Built 2013 Load: 50.6 t ADT: 10,425

HILLCREST ROAD

Good

Over: TWELVEMILE CREEK

0.4 MI S. OLD SHELL ROAD, Mobile, AL

Built 2007 Load: 51.6 t ADT: 15,296

RUSSELL ROAD

Good

Over: PUPPY CREEK

2.3 MI W US 45, Mobile, AL

Built 1992 Load: 51.7 t ADT: 527

CO RD 39 SBL

Good

Over: US 90/CSX RR/SERVICE RD

CO RD 39 @ US 90, Mobile, AL

Built 2009 Load: 52.0 t ADT: 8,446

SATCHEL PAIGE DR

Good

Over: DRAINAGE DITCH

0.8KM S OF US HWY 90, Mobile, AL

Built 2000 Load: 52.7 t ADT: 3,042

I-10 WB

Good

Over: HIGHLAND BRANCH

3.4 MI W US 90, Mobile, AL

Built 1964 Load: 53.0 t ADT: 30,490

WILMER ROAD

Good

Over: BOGGY BRANCH

5.0 MI. N. OF CO 70, Mobile, AL

Built 1993 Load: 54.1 t ADT: 2,752

Half Mile Road

Good

Over: West Fork Fowl River

1.1 mi W Co Rd 59, Mobile, AL

Built 2016 Load: 54.5 t ADT: 3,467

MASON FERRY ROAD

Good

Over: ESCATAWPA RIVER

1100N. CR688 (RELOCATED), Mobile, AL

Built 2006 Load: 55.1 t ADT: 160

March Road

Good

Over: Jackson Creek

0.3 Miles North of I-10, Mobile, AL

Built 2014 Load: 55.1 t ADT: 1,423

ARGYLE ROAD

Good

Over: BRANCH OF HAMMER CREEK

1.6 ML S OF HWY 90, Mobile, AL

Built 2000 Load: 58.1 t ADT: 2,393

SR-163

Good

Over: Perch Creek

4.7 MI S I-10, Mobile, AL

Built 2021 Load: 58.2 t ADT: 7,778

SR 217

Good

Over: BIG CREEK

5.1M N CO RD 63, Mobile, AL

Built 2023 Load: 58.3 t ADT: 1,218

SR 13 (US-43) NB

Good

Over: STEELE CREEK

1 MI S JCT I-65, Mobile, AL

Built 2019 Load: 58.8 t ADT: 6,637

SR-17 (US-45)

Good

Over: Bennetts Creek

_, Mobile, AL

Built 2023 Load: 60.7 t ADT: 5,602

SCHILLINGER ROAD N

Good

Over: RED CREEK

1.5 MI. N. OF U.S. HWY 98, Mobile, AL

Built 2020 Load: 61.3 t ADT: 14,157

AIR TERMINAL DRIVE

Good

Over: MILLER CREEK

0.5 ML S AIRPORT BLVD, Mobile, AL

Built 2009 Load: 61.3 t ADT: 5,721

SR 13 (US-43) SB

Good

Over: STEELE CREEK

1 MI S JCT I-65, Mobile, AL

Built 2021 Load: 62.9 t ADT: 6,216

WEAR RD

Good

Over: BAKER CREEK

275 M S OF DAWES RD, Mobile, AL

Built 1997 Load: 63.3 t ADT: 416

WILMER-GEORGETOWN

Good

Over: PROPOSED U.S. HWY 98

800+/-S. OF DANNER RD, Mobile, AL

Built 2022 Load: 64.7 t ADT: 2,551

SCHILLINGER ROAD N

Good

Over: DOUBLE BRANCH

1.1 MI. N. OF U.S. HWY 98, Mobile, AL

Built 2020 Load: 64.7 t ADT: 14,157

Future SR158/US98

Good

Over: Collins Creek Tributary

1.3 M EAST GLENWOOD RD, Mobile, AL

Built 2022 Load: 65.6 t

SR 158

Good

Over: Collins Creek

0.9 M West of Stone RD, Mobile, AL

Built 2022 Load: 65.6 t ADT: 4,000

Lott Rd_Seabury_Tr

Good

Over: SR 158

SR158 and Lott Rd, Mobile, AL

Built 2022 Load: 65.8 t

CO RD 39 NBL

Good

Over: US 90/CSX RR/SERVICE RD

CO RD 39 @ US 90, Mobile, AL

Built 2009 Load: 67.0 t ADT: 8,446

FOWL RIVER RD

Good

Over: DYKES CREEK

1.5 MI E OF CO RD 59, Mobile, AL

Built 1999 Load: 68.1 t ADT: 1,718

AL 158

Good

Over: Seabury Creek

AL 158 @ Seabury, Mobile, AL

Built 2020 Load: 69.4 t

SR 158

Good

Over: McCrary Rd

0.2 M West of Lott RD, Mobile, AL

Built 2021 Load: 73.6 t ADT: 4,208

Ziegler Blvd

Good

Over: Branch

0.3 MI E ATHEY RD, Mobile, AL

Built 2023 Load: 75.7 t ADT: 15,380

HALLS MILL RD

Good

Over: BOLTON BRANCH

0.2 MI W MC VAY DR, Mobile, AL

Built 1926 Load: 78.2 t ADT: 9,248

US 90

Good

Over: FRANKLIN CREEK

1.8 MI E SR 188, Mobile, AL

Built 2011 Load: 79.6 t ADT: 5,110

US 98

Good

Over: SCARBO TRIBUTARY

?????????????????????????, Mobile, AL

Built 2007 Load: 88.9 t

US 98

Good

Over: LITTLE STICKNEY DRAINAGE

0.10 MI E OF LOUISELLE ST, Mobile, AL

Built 2004 Load: 88.9 t ADT: 22,792

GRANADA AVENUE

Good

Over: SPRING CREEK

200 E OF KNOLLWOOD DR, Mobile, AL

Built 2009 Load: 88.9 t ADT: 339

WEAR ROAD

Good

Over: DEAKLE CREEK

0.8 MLS N BEN HAMILTON RD, Mobile, AL

Built 2010 Load: 88.9 t ADT: 416

SHASTA WAY

Good

Over: DITCH

0.1 MI N US90, Mobile, AL

Built 2011 Load: 88.9 t ADT: 796

Future SR158/US98

Good

Over: Collins Creek Tributary

1.1 M EAST GLENWOOD RD, Mobile, AL

Built 2022 Load: 88.9 t

Celeste Road

Good

Over: I-65 NBL & SBL

2.2 Miles N. of SR-158, Mobile, AL

Built 2017 Load: 88.9 t ADT: 15,181

DUNLAP DRIVE

Good

Over: PINTO PASS

0.7 MI S JCT US 90, Mobile, AL

Built 2020 Load: 88.9 t ADT: 526

CRAFT HWY

Poor

Over: TOULMIN SPRINGS

0.4 MI N US 45, Mobile, AL

Built 1943 Load: 0.0 t ADT: 11,232

MCGREGOR AVE

Poor

Over: ESLAVA CREEK

0.3 MI N AIRPORT BLVD., Mobile, AL

Built 1964 Load: 0.0 t ADT: 19,384

RIVA ROAD

Poor

Over: TRIBUTARY TO BAYOU CODEN

1300 N. OF U.S. HWY 188, Mobile, AL

Built 2007 Load: 0.0 t ADT: 138

WARREN STREET

Poor

Over: PETERSON BRANCH

0.3 MI W WASSON AVE, Mobile, AL

Built 1965 Load: 1.8 t ADT: 502

TURNER ROAD

Poor

Over: GUM TREE BRANCH

0.17 MI N E WHISTLER ST, Mobile, AL

Built 1973 Load: 1.8 t ADT: 2,512

Read our methodology - how this data is sourced, computed, and verified.

Related

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.