US Bridges

D-25 over Abandoned RR

Fair

Woodbury County, Iowa · 088470906 · Structure no. 000000000053461

Built
1978
47 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
284 ft
4 main spans
Daily traffic
2,633
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

D-25 over Abandoned RR is a prestressed concrete stringer/multi-beam or girder carrying D-25 over Abandoned RR in Woodbury County, Iowa. It was built in 1978, so it is 47 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,633 vehicles a day, roughly 3% of them trucks, projected to reach 2,633 by 2044. The structure is 284 ft (86.6 m) long and 39 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesD-25
CrossesAbandoned RR
Location088470906
RouteCounty Highway 0
CountyWoodbury County
StateIowa
Coordinates42.4453, -96.31186
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.9 US tons
Inventory rating39.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length284 ft (86.6 m)
Longest span82 ft (25 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,633 (2022)
Projected traffic2,633 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was D-25 over Abandoned RR built?

It was built in 1978, making it 47 years old in 2025.

What condition is D-25 over Abandoned RR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does D-25 over Abandoned RR carry?

About 2,633 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is D-25 over Abandoned RR?

The structure is 284 ft (86.6 m) long with a longest span of 82 ft (25 m) and a deck 39 ft wide.

Who owns D-25 over Abandoned RR?

It is owned by the City or Municipal Highway Agency.