US Bridges

Martelle RD over Elbow Creek

Fair

Linn County, Iowa · 083051201 · Structure no. 000000000220581

Built
1977
48 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
32 ft
1 main span
Daily traffic
363
2022 count
Owner
County
County Highway Agency

About this bridge

Martelle RD over Elbow Creek is a wood or timber slab carrying Martelle RD over Elbow Creek in Linn 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 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 363 vehicles a day, projected to reach 363 by 2044. The structure is 32 ft (9.8 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesMartelle RD
CrossesElbow Creek
Location083051201
RouteCounty Highway 0
CountyLinn County
StateIowa
Coordinates42.02005, -91.37393
Functional classRural Minor 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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.1 US tons
Inventory rating49.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic363 (2022)
Projected traffic363 by 2044
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 Martelle RD over Elbow Creek built?

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

What condition is Martelle RD over Elbow 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 October 2024.

How much traffic does Martelle RD over Elbow Creek carry?

About 363 vehicles per day (2022 count).

How long is Martelle RD over Elbow Creek?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 32 ft wide.

Who owns Martelle RD over Elbow Creek?

It is owned by the County Highway Agency.