How many bridges are in Oklahoma?

Oklahoma has 22,733 public highway bridges tracked in the FHWA National Bridge Inventory. View detailed condition data for each bridge on PlainBridges.

What percentage of bridges in Oklahoma are structurally deficient?

7.5% of bridges in Oklahoma are classified as structurally deficient by the FHWA, compared to a national average of 7.0%.

State profile · Near national median SD

Oklahoma bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Oklahoma — drawn straight from the FHWA National Bridge Inventory.

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026

22,733
Public bridges: 38.2%
Good condition: 7.5%
Poor condition: 7.5%
Structurally deficient

Total Bridges

22,733

Public highway bridges in Oklahoma

Good Condition

38.2%

8,693 bridges rated 7-9

-11.8pp vs 50% benchmark

Poor Condition

7.5%

1,705 bridges rated 0-4

Structurally Deficient

7.5%

1,705 bridges flagged for repair priority

0.5pp vs national avg 7.0%

Oklahoma vs national bridge condition

Oklahoma — Good condition share 38.2%

National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Oklahoma — Structurally deficient share 25.0%

National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Oklahoma (FHWA NBI)

Counties (77)

Adair 139 Alfalfa 386 Atoka 232 Beaver 189 Beckham 309 Blaine 271 Bryan 285 Caddo 414 Canadian 492 Carter 339 Cherokee 203 Choctaw 216 Cimarron 93 Cleveland 316 Coal 139 Comanche 592 Cotton 213 Craig 176 Creek 391 Custer 382 Delaware 159 Dewey 167 Ellis 152 Garfield 504 Garvin 323 Grady 446 Grant 471 Greer 225 Harmon 106 Harper 128 Haskell 153 Hughes 205 Jackson 284 Jefferson 150 Johnston 150 Kay 414 Kingfisher 294 Kiowa 474 Latimer 196 Le Flore 466 Lincoln 448 Logan 280 Love 130 Major 266 Marshall 78 Mayes 232 McClain 239 McCurtain 260 McIntosh 198 Murray 128 Muskogee 396 Noble 342 Nowata 126 Okfuskee 204 Oklahoma 1216 Okmulgee 305 Osage 356 Ottawa 265 Pawnee 171 Payne 384 Pittsburg 409 Pontotoc 238 Pottawatomie 400 Pushmataha 245 Roger Mills 153 Rogers 267 Seminole 293 Sequoyah 260 Stephens 380 Texas 110 Tillman 281 Tulsa 1124 Wagoner 253 Washington 214 Washita 361 Woods 310 Woodward 167

Oklahoma vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Oklahoma on the same metric.

Kentucky

7.06% top marginal rate

Structure: Progressive
Burden @ $100K: $14,554

New Hampshire

7.08% top marginal rate

Structure: Progressive
Burden @ $100K: $2,542

Selected

Oklahoma

7.50% top marginal rate

Structure: Progressive
Burden @ $100K: $22,733

New Mexico

7.61% top marginal rate

Structure: Progressive
Burden @ $100K: $368

Rhode Island

7.69% top marginal rate

Structure: Progressive
Burden @ $100K: $78

Bridges Needing Most Attention in Oklahoma

Six lowest-condition bridges in Oklahoma, ranked by composite NBI rating. Each is inspected at least every 24 months.

N3248 (WALNUT ST.)

Poor

Over: RUSH CREEK (WALNUT ST.)

0.5 MI SE OF COURTHOUSE, Garvin, OK

Built 1920 Load: 0.1 t ADT: 4,200

N2280

Structurally Deficient

Over: CREEK

1.2E 2.9N OF ARAPAHO, Custer, OK

Built 1920 Load: 1.8 t ADT: 24

N3070

Structurally Deficient

Over: CREEK

7.E 3.S OF HUNTER, Garfield, OK

Built 1922 Load: 1.8 t ADT: 25

E0560

Structurally Deficient

Over: BITTER CREEK

.5N 9E OF BISON, Garfield, OK

Built 1953 Load: 1.8 t ADT: 60

E0450

Structurally Deficient

Over: CREEK

7W 2.5S OF I-35/CM TPK, Noble, OK

Built 1941 Load: 1.8 t ADT: 24

6338C

Poor

Over: CREEK

.6 N & .2 W OF WANETTE, Pottawatomie, OK

Built 1940 Load: 1.8 t ADT: 70

All Bridges in Oklahoma

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Publisher	Kiznis Studio
Sources	FHWA National Bridge Inventory, public U.S. government datasets

Oklahoma vs national bridge condition

Condition Distribution

Counties (77)

Bridges Needing Most Attention in Oklahoma

N3248 (WALNUT ST.)

N2280

N3070

E0560

E0450

6338C

All Bridges in Oklahoma

KILPATRICK TP NB

MORGAN RD. (SPUI)

S.H. 4

RADIO RD.

FRISCO RD

SARA RD.

I-35 NB

I-35 SB

I-35 SB

I-35 NB

I-35 SB

I-35 NB

I-35 SB

I-35 NB

CO. RD. E2000

MLK DR

I-35 SB

I-35 NB

I-35 NB

I-35 SB

CO. RD. E1860

S.H. 53 (EAST)

U.S. 70

FAU 4920 (12 ST.)

I-35 SB

I-35 NB

U.S. 70

I-35 SB

I-35 NB

U.S. 271

CO. RD. E2030

CO. RD. E1980

CO. RD. 1206C

CO. RD.

CO. RD.

U.S. 70 EB

U.S. 70 WB

U.S. 271

U.S. 70 SB

U.S. 70 NB

U.S. 271

U.S. 70

U.S. 70

U.S. 287

I-44

I-44

I-44

I-44

I-44

I-44

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