US Bridges

Southwest RD over Johnsons Run

Good

Page County, Iowa · 000000000 · Structure no. 000000000010321

Built
2024
1 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
1,414
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Southwest RD over Johnsons Run is a prestressed concrete stringer/multi-beam or girder carrying Southwest RD over Johnsons Run in Page County, Iowa. It was built in 2024, so it is 1 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,414 vehicles a day, projected to reach 1,414 by 2044. The structure is 58 ft (17.8 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSouthwest RD
CrossesJohnsons Run
Location000000000
RouteCity Street 0
CountyPage County
StateIowa
Coordinates40.75883, -95.38355
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length58 ft (17.8 m)
Longest span55 ft (16.8 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,414 (2022)
Projected traffic1,414 by 2044
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Southwest RD over Johnsons Run built?

It was built in 2024, making it 1 years old in 2025.

What condition is Southwest RD over Johnsons Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Southwest RD over Johnsons Run carry?

About 1,414 vehicles per day (2022 count).

How long is Southwest RD over Johnsons Run?

The structure is 58 ft (17.8 m) long with a longest span of 55 ft (16.8 m) and a deck 33 ft wide.

Who owns Southwest RD over Johnsons Run?

It is owned by the City or Municipal Highway Agency.