US Bridges

Heather Street over Dd 30 Spring Creek

Fair

Franklin County, Iowa · 092212002 · Structure no. 000000000366620

Built
1964
61 years old
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
160
2022 count
Owner
County
County Highway Agency

About this bridge

Heather Street over Dd 30 Spring Creek is a steel culvert carrying Heather Street over Dd 30 Spring Creek in Franklin County, Iowa. It was built in 1964, so it is 61 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 160 vehicles a day, projected to reach 160 by 2044. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHeather Street
CrossesDd 30 Spring Creek
Location092212002
RouteCity Street 0
CountyFranklin County
StateIowa
Coordinates42.77095, -93.36012
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2022)
Projected traffic160 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Heather Street over Dd 30 Spring Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Heather Street over Dd 30 Spring Creek 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 June 2024.

How much traffic does Heather Street over Dd 30 Spring Creek carry?

About 160 vehicles per day (2022 count).

How long is Heather Street over Dd 30 Spring Creek?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m).

Who owns Heather Street over Dd 30 Spring Creek?

It is owned by the County Highway Agency.