US Bridges

FM 105th ST over Maynes Creek

Fair

Franklin County, Iowa · 091202203 · Structure no. 000000000025180

Built
1951
74 years old, rebuilt 2002
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
184 ft
3 main spans
Daily traffic
540
2022 count
Owner
County
County Highway Agency

About this bridge

FM 105th ST over Maynes Creek is a steel continuous stringer/multi-beam or girder carrying FM 105th ST over Maynes Creek in Franklin County, Iowa. It was built in 1951 and reconstructed in 2002, so it is 74 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.

It carries about 540 vehicles a day, roughly 13% of them trucks, projected to reach 540 by 2043. The structure is 184 ft (56.1 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesFM 105th ST
CrossesMaynes Creek
Location091202203
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.67979, -93.20101
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
Deck7 GoodSome minor problems.
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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.3 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length184 ft (56.1 m)
Longest span70 ft (21.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2022)
Projected traffic540 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 105th ST over Maynes Creek built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2002.

What condition is FM 105th ST over Maynes 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 May 2023.

How much traffic does FM 105th ST over Maynes Creek carry?

About 540 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is FM 105th ST over Maynes Creek?

The structure is 184 ft (56.1 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.

Who owns FM 105th ST over Maynes Creek?

It is owned by the County Highway Agency.