US Bridges

FM over Dd 34 Lat #2

Poor

Buena Vista County, Iowa · 093353502 · Structure no. 000000000361351

Built
1979
46 years old
Condition
Poor
inspected July 2024
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
489
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Dd 34 Lat #2 is a concrete slab carrying FM over Dd 34 Lat #2 in Buena Vista County, Iowa. It was built in 1979, so it is 46 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 489 vehicles a day, roughly 17% of them trucks, projected to reach 489 by 2044. The structure is 27 ft (8.2 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM
CrossesDd 34 Lat #2
Location093353502
RouteCounty Highway 0
StateIowa
Coordinates42.82948, -94.95331
Functional classRural Major 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.5 US tons
Inventory rating39.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic489 (2022)
Projected traffic489 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 FM over Dd 34 Lat #2 built?

It was built in 1979, making it 46 years old in 2025.

What condition is FM over Dd 34 Lat #2 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 July 2024.

How much traffic does FM over Dd 34 Lat #2 carry?

About 489 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is FM over Dd 34 Lat #2?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 32 ft wide.

Who owns FM over Dd 34 Lat #2?

It is owned by the County Highway Agency.