Total Bridges
8,305
Public highway bridges in Oregon
State profile · Below median Poor share
According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Oregon.
Oregon holds 8,305 public highway bridges (#30 of 52 by inventory) with a 4.61% Poor share (#37 of 52 by Poor share).
That is 4.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 16 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.
Inventory: FHWA NBI 2024 · last ETL August 2026
Total Bridges
8,305
Public highway bridges in Oregon
Good Condition
33.3%
2,766 bridges rated 7-9
-16.7pp vs 50% benchmark
Poor Condition
4.6%
383 bridges whose lowest applicable component is rated 0-4
-2.9pp vs national avg 7.5%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.
Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.
Oregon vs all states by public bridge inventory
Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges
8,305 30th of 54 higher than 24 of 54 states
States and territories, banded by public bridge inventory size
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · 2024
The highlighted point is Oregon: 8,305 bridges and 4.61% in Poor condition, rank #16 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Oregon on that same Poor-share ordering:
The full national sortable table lives on the rankings page.
Exclusive FHWA material families across all 8,305 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.
State agency holds 34.3% of the 8,305 public highway bridges filed under Oregon in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.
Pre-1950 construction accounts for 8.8% of the 8,305 bridges with a recorded original year in Oregon. Era bands are orthogonal to the Poor-share ranking above.
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Oregon on the same metric.
NM
MD
OR
CT
OH
Six lowest-condition bridges in Oregon, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Over: MILL CREEK
6.5 KM W OF OLD MILL CAMP, Wasco, OR
Over: WARM SPRINGS RIVER
42 KM NW OF WARM SPRINGS, Wasco, OR
Over: COI CANAL
1 MI SOUTH OF HWY 20, Deschutes, OR
Over: ROW RIVER
T21S-R2W-S24, Lane, OR
Over: FERRY CREEK
CITY OF BANDON, Coos, OR
Over: SOUTH MYRTLE CREEK
10.7 MI E OF MYRTLE CREEK, Douglas, OR
Over: DRAINAGE DITCH
039 MI E OF HWY 39, Klamath, OR
Over: DRAINAGE SWALE
011 MI N HWY 140, Klamath, OR
Over: DRAINAGE SWALE
014 MI N HWY 140, Klamath, OR
Over: ROCK CREEK DRAIN
049 MI NW OF HWY 140, Klamath, OR
Over: SCOTT CREEK
029 MI W OF HWY 97, Klamath, OR
Over: CHENEY CREEK
JOSEPHINE CO, Josephine, OR
Over: TABLE CREEK
170 MI SE COTTAGE GROVE, Lane, OR
Over: SCS DITCH
035 MI NE JUNCTION CITY, Lane, OR
Over: MILL RACE CANAL
EUGENE HILYARD MILL R, Lane, OR
Over: AMAZON CREEK
EUGENE 11TH AMAZON CH, Lane, OR
Over: SILVIES RIVER
395 S TO MP 43.6 - E 1.6M, Harney, OR
Over: CLACKAMAS RIVER
S-22 T-8S R-8E WM, Marion, OR
Over: CAMP CREEK
S-19 T-3S R-8E WM, Clackamas, OR
Over: JACKSON CREEK
J.HERBERT STONE NURSERY, Jackson, OR
Over: W FK AUSTIN CK BRIDGE
1.7 MI FRM JCT OR HWY 130, Tillamook, OR
Over: NORTH FORK SMITH RIVER
NO DATA ENTERED, Douglas, OR
Over: SILTCOOS RIVER
NO DATA ENTERED, Lane, OR
Over: FALL CR
14 E FALL CR DAM ON FS 18, Lane, OR
Over: CREEK FRONTAGE RT
012 MI N DIAMOND HILL INT, Linn, OR
Over: PILOT BUTTE CANAL
0.2 MI. EAST OF HWY 97, Deschutes, OR
Over: SCS CHANNEL
013 MI WEST JUNCTION CITY, Lane, OR
Over: CEDAR MILL CREEK
005 MI W CEDAR HILLS BLVD, Washington, OR
Over: JOHN DAY RIVER (ODFW)
0.2 Mi. S of US 26 MP 136, Grant, OR
Over: SUTTON LAKE
010 MI E HWY101 AT SUTTON, Lane, OR
Over: FANNO CREEK
0025 MI SOUTH PACIFIC HWY, Washington, OR
Over: SOUTH FORK JOHN DAY RIVE
45.3 miles N of Hines on, Grant, OR
Over: NESTUCCA RIVER
31.0 miles E of Hwy 101 (, Tillamook, OR
Over: Little Nestucca River
085 MI E JCT HWY 9, Tillamook, OR
Over: SILVIES SLOUGH(7TH BR)
1.4 MI. E. JCT. US 20/395, Harney, OR
Over: S FK MCKENZIE R
11.5 S JCT HWY 126-FS 19, Lane, OR
Over: FISHHAWK CREEK
015 MI NW OF BIRKENFELD, Clatsop, OR
Over: MCDOWELL CR
082 MI E CR 35 INTER, Linn, OR
Over: HAMILTON CREEK
036 MI E CR 24, Linn, OR
Over: NORTH FORK YACHATS RIVER
075 MI EAST OF YACHATS, Lincoln, OR
Over: HILLSIDE
WEST OF LEABURG DAM RD, Lane, OR
Over: BEAR CREEK
3.0 MI E RHODODENDRON PO, Clackamas, OR
Over: CUNNINGHAM CREEK
008 MI NE OF COQUILLE, Coos, OR
Over: THREE MILE CREEK
IN THE DALLES, Wasco, OR
Over: UMATILLA RIVER
0.1 MI N OF COURT AVENUE, Umatilla, OR
Over: Goose Creek
MP 26.1, Deschutes, OR
Over: SPRAGUE RIVER
012 MI N OF HWY 140, Klamath, OR
Over: CLEAR CREEK IRRIGATION *
S-17 T-5S R-10E WM, Wasco, OR
Over: WILLIAMS CREEK
0.9 miles S of Hwy 34 (MP, Benton, OR
Over: BLITZEN RIVER
2.85 miles E of Frenchgle, Harney, OR
Over: ROCK CREEK
9.4 miles NE of Hwy 138 (, Douglas, OR
Over: TRIB TO LOST CREEK
7.2 miles SE of Molalla o, Clackamas, OR
Over: PULASKI CREEK
02.0 W JCT HWY 035, Coos, OR
Over: SPRING HOLLOW CREEK
22.9 MI WASH ST LINE, Umatilla, OR
Over: Half Viaduct
015 MI S SHORT SANDS BCH, Tillamook, OR
Over: LAMPA CREEK
7.3 E of Bandons E CL, Coos, OR
Showing 5,851-5,900 of 8,305 bridges
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
What to do with this
Use Oregon's inventory picture to drill to a county or a specific span.
NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Oregon Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.