US Bridges

FM 2030 170th over Drainage Ditch #9

Fair

Hancock County, Iowa · 095233201 · Structure no. 000000000173181

Built
1975
50 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
688
2022 count
Owner
County
County Highway Agency

About this bridge

FM 2030 170th over Drainage Ditch #9 is a prestressed concrete stringer/multi-beam or girder carrying FM 2030 170th over Drainage Ditch #9 in Hancock County, Iowa. It was built in 1975, so it is 50 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 688 vehicles a day, roughly 25% of them trucks, projected to reach 688 by 2044. The structure is 54 ft (16.5 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFM 2030 170th
CrossesDrainage Ditch #9
Location095233201
RouteCounty Highway 0
CountyHancock County
StateIowa
Coordinates43.00968, -93.59039
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length54 ft (16.5 m)
Longest span51 ft (15.5 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic688 (2022)
Projected traffic688 by 2044
Trucks25%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 2030 170th over Drainage Ditch #9 built?

It was built in 1975, making it 50 years old in 2025.

What condition is FM 2030 170th over Drainage Ditch #9 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 March 2024.

How much traffic does FM 2030 170th over Drainage Ditch #9 carry?

About 688 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is FM 2030 170th over Drainage Ditch #9?

The structure is 54 ft (16.5 m) long with a longest span of 51 ft (15.5 m) and a deck 32 ft wide.

Who owns FM 2030 170th over Drainage Ditch #9?

It is owned by the County Highway Agency.