Total bridges
277
Public highway bridges in Delaware County
County profile · official public datasets
Delaware County, IN
277 public highway bridges tracked in the FHWA National Bridge Inventory: 31.8% rated Good, 62.8% Fair, 5.4% Poor.
- 277
- Public bridges
- 31.8%
- Good condition
- 5.4%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Delaware County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 54th
- of 92 on Poor share
- 5.4%
- Poor-condition share
- 277
- public highway bridges
- 1976
- 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.
Delaware County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Delaware County ranks #54 of 92 Indiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.4%). Delaware County, Indiana contains 277 public highway bridges. Roughly 31.8% are rated “Good,” 62.8% “Fair,” and 5.4% “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.
Good condition
31.8%
88 of 277 rated 7-9
Fair condition
62.8%
174 of 277 rated 5-6
Poor condition
5.4%
15 of 277 rated 4 or below
In-state Poor-share rank
#54 of 92
Among Indiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 277 NBI-tracked bridges by lowest applicable component rating.
Good 31.8% (88)
Fair 62.8% (174)
Poor 5.4% (15)
Delaware County's Poor-condition bridges carry 66,495 vehicle crossings a day
That is 6.1% of the county's reported daily bridge traffic on 5.4% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 4,433 crossings a day against 4,430 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 277 of 277 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
53.4% of Delaware County's bridges have passed the 50-year mark
148 of the 277 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 31.8% 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 22.3% of the county's Poor-condition bridge traffic
I-69 SB over KILLBUCK CREEK, built 1963, carries 14,852 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 15-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 66,495 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Delaware County's bridges were built
277 bridges with a recorded construction year, grouped by decade
- pre-1900 1
Built before 1900
1 bridges
- 1900s 3
1900–1909
3 bridges
- 1920s 5
1920–1929
5 bridges
- 1930s 13
1930–1939
13 bridges
- 1940s 3
1940–1949
3 bridges
- 1950s 11
1950–1959
11 bridges
- 1960s
1960–1969
70 bridges
- 1970s
1970–1979
49 bridges
- 1980s
1980–1989
53 bridges
- 1990s
1990–1999
29 bridges
- 2000s 16
2000–2009
16 bridges
- 2010s 21
2010–2019
21 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 1960s, when 70 of the county's bridges still in the inventory were built, which is 25.3% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1976) matches the Indiana average (1978).
How Delaware County compares with Indiana's closest counties by inventory size
The 5 Indiana counties nearest Delaware County in number of bridges, with their condition splits. Its 5.4% Poor share is the 5th-lowest of these 6. Its average build year of 1976 against a peer-group mean of 1976 is in line with the group.
Showing the 5 closest of 91 Indiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Grant County | 280 | 38.6% | 59.6% | 1.8% | 1975 |
| Vanderburgh County | 279 | 47.7% | 48% | 4.3% | 1980 |
| Elkhart County | 278 | 38.1% | 55.8% | 6.1% | 1975 |
| Porter County | 277 | 42.6% | 52% | 5.4% | 1970 |
| Delaware County (this page) | 277 | 31.8% | 62.8% | 5.4% | 1976 |
| Bartholomew County | 269 | 53.5% | 43.1% | 3.3% | 1982 |
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 Delaware 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 Delaware County, both outside Indiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside IN (277 bridges here).
- Navajo County, AZ · 277 bridges
- Shelby County, OH · 277 bridges
- Florence County, SC · 277 bridges
- Edgar County, IL · 278 bridges
Similar average build year
Nearest mean year-built outside IN (1976 here).
- Mohave County, AZ · avg 1976 · 641 bridges
- Comanche County, OK · avg 1976 · 593 bridges
- Prince George's County, MD · avg 1976 · 576 bridges
- New Castle County, DE · avg 1976 · 527 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (277)
SMITHFIELD PIKE
GoodOver: MUD CREEK
00.15 W of CR 550 E, Delaware, IN
Built 2005 Load: 56.5 t ADT: 1,130
STRONG ROAD
GoodOver: MISSISSINEWA RIVER
00.20 NNE EDGEWATER RD, Delaware, IN
Built 2016 Load: 57.5 t ADT: 870
WALNUT ST
GoodOver: WHITE RIVER
00.03 S of MCCULLOUGH Blv, Delaware, IN
Built 1937 Load: 58.9 t ADT: 11,930
CR 600W
GoodOver: YORK PRAIRIE CREEK
00.35 N of DIVISION ROAD, Delaware, IN
Built 2020 Load: 60.8 t ADT: 3,180
HIGH ST
GoodOver: WHITE RIVER
00.05 SE of WHITE RIVER B, Delaware, IN
Built 1937 Load: 61.6 t ADT: 13,970
CR 850W
GoodOver: PLEASANT RUN CREEK
00.03 N of CR 200 N, Delaware, IN
Built 2006 Load: 65.1 t ADT: 10
PRIESTFORD ROAD
GoodOver: WHITE RIVER
00.20 S of BURKMILL Rd, Delaware, IN
Built 2001 Load: 67.1 t ADT: 330
SR 67
GoodOver: LITTLE NO NAME CREEK
06.83 N I-69, Delaware, IN
Built 1999 Load: 72.5 t ADT: 12,872
CR 200W
GoodOver: WILLIAMS CREEK
00.23 S of CR 775 S, Delaware, IN
Built 2018 Load: 76.5 t ADT: 60
SR 67
GoodOver: UNT LITTLE NO NAME CREEK
07.21 N I-69, Delaware, IN
Built 1999 Load: 81.6 t ADT: 12,872
CR 700S
GoodOver: MACEDONIA CREEK
00.43 W of CR 200 E, Delaware, IN
Built 2019 Load: 91.3 t ADT: 340
SR 332
GoodOver: PLEASANT RUN CREEK
01.39 E I-69, Delaware, IN
Built 1981 Load: 97.2 t ADT: 14,583
ABNDND PRIESTFORD
PoorOver: WHITE RIVER
00.20 S of BURKMILL Rd, Delaware, IN
Built 1892 Load: 0.0 t ADT: 230
GREGORY ROAD
PoorOver: MISSISSINEWA RIVER
00.10 W of CR 450 E, Delaware, IN
Built 1902 Load: 6.2 t ADT: 600
CR 600E
PoorOver: BOSMAN DITCH
00.30 N of CR 1000 N, Delaware, IN
Built 1935 Load: 14.7 t ADT: 170
SR 28
PoorOver: MISSISSINEWA RIVER
3.26 E SR 3, Delaware, IN
Built 1928 Load: 22.0 t ADT: 9,995
CR 650E
PoorOver: CAMPBELL CREEK
00.10 N of CR 350 N, Delaware, IN
Built 1982 Load: 26.2 t ADT: 720
WHEELING AVENUE
PoorOver: HEDGELAND DITCH
00.08 S of CR 1070 N, Delaware, IN
Built 1965 Load: 26.6 t ADT: 1,460
CR 500N
PoorOver: MUD CREEK
00.03 W of CR 850 E, Delaware, IN
Built 1920 Load: 27.5 t ADT: 210
CR 400S
PoorOver: BUCK CREEK
00.16 E of WALNUT St, Delaware, IN
Built 1961 Load: 29.8 t ADT: 260
SHAFFER ROAD
PoorOver: KILLBUCK CREEK
00.23 N of ROYERTON Rd, Delaware, IN
Built 1961 Load: 30.3 t ADT: 1,400
I-69 NB
PoorOver: KILLBUCK CREEK
00.93 N SR 332, Delaware, IN
Built 1963 Load: 30.5 t ADT: 14,592
I-69 SB
PoorOver: KILLBUCK CREEK
00.93 N SR 332, Delaware, IN
Built 1963 Load: 31.1 t ADT: 14,852
MEMORIAL DRIVE
PoorOver: WHITE RIVER
00.25 E OF BURLINGTON DRI, Delaware, IN
Built 1973 Load: 32.7 t ADT: 9,340
CR 550 SOUTH
PoorOver: BELL CREEK
00.15 E of SR 67, Delaware, IN
Built 1937 Load: 32.7 t ADT: 420
I-69 SB
PoorOver: N&S RR CR 251 N
00.66 N SR 332, Delaware, IN
Built 1963 Load: 38.9 t ADT: 12,226
CR 200W
PoorOver: NO NAME CREEK
00.17 N of CR 400 S, Delaware, IN
Built 1980 Load: 48.4 t ADT: 20
Read our methodology - how this data is sourced, computed, and verified.
Related
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.