US Bridges

310 Avenue over Brush Creek

Poor

Fremont County, Iowa · 070412004 · Structure no. 000000000161081

Built
1900
125 years old, rebuilt 1977
Condition
Poor
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
41
2021 count
Owner
County
County Highway Agency

About this bridge

310 Avenue over Brush Creek is a prestressed concrete tee beam carrying 310 Avenue over Brush Creek in Fremont County, Iowa. It was built in 1900 and reconstructed in 1977, so it is 125 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 41 vehicles a day, projected to reach 41 by 2043. The structure is 25 ft (7.6 m) long and 25 ft wide.

Location

Open in Google Maps
Carries310 Avenue
CrossesBrush Creek
Location070412004
RouteCounty Highway 0
CountyFremont County
StateIowa
Coordinates40.85498, -95.5942
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating0 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2021)
Projected traffic41 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 310 Avenue over Brush Creek built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1977.

What condition is 310 Avenue over Brush Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does 310 Avenue over Brush Creek carry?

About 41 vehicles per day (2021 count).

How long is 310 Avenue over Brush Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 25 ft wide.

Who owns 310 Avenue over Brush Creek?

It is owned by the County Highway Agency.