US Bridges

E 13th ST over Skunk River

Fair

Story County, Iowa · 083240103 · Structure no. 000000000314840

Built
1968
57 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
248 ft
3 main spans
Daily traffic
13,164
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

E 13th ST over Skunk River is a prestressed concrete stringer/multi-beam or girder carrying E 13th ST over Skunk River in Story County, Iowa. It was built in 1968, so it is 57 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 13,164 vehicles a day, projected to reach 13,164 by 2043. The structure is 248 ft (75.6 m) long and 64 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesE 13th ST
CrossesSkunk River
Location083240103
RouteCounty Highway 0
CountyStory County
StateIowa
Coordinates42.0344, -93.59474
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length248 ft (75.6 m)
Longest span80 ft (24.4 m)
Deck width64 ft (19.4 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,164 (2022)
Projected traffic13,164 by 2043
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was E 13th ST over Skunk River built?

It was built in 1968, making it 57 years old in 2025.

What condition is E 13th ST over Skunk River 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 E 13th ST over Skunk River carry?

About 13,164 vehicles per day (2022 count).

How long is E 13th ST over Skunk River?

The structure is 248 ft (75.6 m) long with a longest span of 80 ft (24.4 m) and a deck 64 ft wide.

Who owns E 13th ST over Skunk River?

It is owned by the City or Municipal Highway Agency.