US Bridges

FM 245 ST over Plum Creek

Good

Delaware County, Iowa · 088031803 · Structure no. 000000000140500

Built
1977
48 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
189 ft
3 main spans
Daily traffic
39
2022 count
Owner
County
County Highway Agency

About this bridge

FM 245 ST over Plum Creek is a prestressed concrete stringer/multi-beam or girder carrying FM 245 ST over Plum Creek in Delaware County, Iowa. It was built in 1977, so it is 48 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 39 vehicles a day, projected to reach 39 by 2044. The structure is 189 ft (57.6 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 245 ST
CrossesPlum Creek
Location088031803
RouteCounty Highway 0
StateIowa
Coordinates42.43361, -91.23181
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.9 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length189 ft (57.6 m)
Longest span69 ft (21 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2022)
Projected traffic39 by 2044
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 245 ST over Plum Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is FM 245 ST over Plum Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does FM 245 ST over Plum Creek carry?

About 39 vehicles per day (2022 count).

How long is FM 245 ST over Plum Creek?

The structure is 189 ft (57.6 m) long with a longest span of 69 ft (21 m) and a deck 32 ft wide.

Who owns FM 245 ST over Plum Creek?

It is owned by the County Highway Agency.