US Bridges

330 TH over Stream

FairPosted for load

Greene County, Iowa · 082293501 · Structure no. 000000000161700

Built
1921
104 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
26
2022 count
Owner
County
County Highway Agency

About this bridge

330 TH over Stream is a steel stringer/multi-beam or girder carrying 330 TH over Stream in Greene County, Iowa. It was built in 1921, so it is 104 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 26 vehicles a day, projected to reach 26 by 2044. The structure is 43 ft (13.1 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries330 TH
CrossesStream
Location082293501
RouteCounty Highway 0
CountyGreene County
StateIowa
Coordinates41.8777, -94.19771
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating19.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span42 ft (12.8 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2022)
Projected traffic26 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 330 TH over Stream built?

It was built in 1921, making it 104 years old in 2025.

What condition is 330 TH over Stream 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 July 2024.

How much traffic does 330 TH over Stream carry?

About 26 vehicles per day (2022 count).

How long is 330 TH over Stream?

The structure is 43 ft (13.1 m) long with a longest span of 42 ft (12.8 m) and a deck 22 ft wide.

Who owns 330 TH over Stream?

It is owned by the County Highway Agency.